(8aR,9R)-9-Hy­droxy-7,8,8a,9-tetra­hydro­furo[3,2-f]indolizin-6(4H)-one

Vrábel, V.; Švorc, Ľ.; Šafář, P.; Sivý, J.; Jozefína, Ž.

doi:10.1107/S1600536812040378

organic compounds

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 68| Part 10| October 2012| Pages o3034-o3035

https://doi.org/10.1107/S1600536812040378

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(8aR,9R)-9-Hydroxy-7,8,8a,9-tetrahydrofuro[3,2-f]indolizin-6(4H)-one

Viktor Vrábel,^a ^* Ľubomír Švorc,^a Peter Šafář,^b Július Sivý ^c and Žúžiová Jozefína ^b

^aInstitute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic 81237, ^bInstitute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic 81237, and ^cInstitute of Mathematics and Physics, Faculty of Mechanical Engineering STU, Námestie slobody 17, SK-812 37 Bratislava, Slovak Republic
^*Correspondence e-mail: viktor.vrabel@stuba.sk

(Received 19 September 2012; accepted 24 September 2012; online 29 September 2012)

The title compound, C₁₀H₁₁NO₃, crystallizes with four independent molecules in the asymmetric unit. Their geometries are very similar and corresponding bond distances are almost identical. The central six-membered ring of the indolizine moiety adopts a envelope conformation [the displacement of the flap atom (the C atom opposite the N atom) being 0.539 (2), 0.548 (3), 0.509 (3) and 0.544 (3) Å in the four molecules], while the conformation of the oxopyrrolidine ring is close to that of a flat envelope. The displacements of the non-fused C atom opposite the C=O group of the pyrrolidine ring of the four molecules are 0.366 (3), 0.335 (3), 0.173 (3) and −0.310 (3) Å. In the crystal, O—H⋯O hydrogen bonds link the molecules into chains, which run parallel to the c axis. The absolute configuration was assigned from the synthesis.

Related literature

For background to indolizines and their biological activity, see: Gubin et al. (1992 ); Gundersen et al. (2007 ); Gupta et al. (2003 ); Mikael (1999 ); Pyne (2005 ); Teklu et al. (2005 ). For asymmetry parameters, see: Nardelli (1983 ).

Experimental

Crystal data

C₁₀H₁₁NO₃
M_r = 193.20
Orthorhombic, P 2₁ 2₁ 2₁
a = 14.7603 (10) Å
b = 15.1301 (17) Å
c = 16.2847 (9) Å
V = 3636.8 (5) Å³
Z = 16
Mo Kα radiation
μ = 0.11 mm⁻¹
T = 298 K
0.58 × 0.34 × 0.09 mm

Data collection

Oxford Diffraction Gemini R CCD diffractometer
Absorption correction: analytical (Clark & Reid, 1995 ) T_min = 0.953, T_max = 0.989
55202 measured reflections
3581 independent reflections
3168 reflections with I > 2σ(I)
R_int = 0.036

Refinement

R[F² > 2σ(F²)] = 0.034
wR(F²) = 0.086
S = 1.04
3581 reflections
522 parameters
4 restraints
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 0.17 e Å⁻³
Δρ_min = −0.15 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A;
O3—H3O⋯O2ⁱ	0.84 (2)	1.90 (2)	2.681 (2)	154 (3)
O6—H6O⋯O8ⁱⁱ	0.86 (2)	1.93 (2)	2.766 (3)	166 (4)
O9—H9O⋯O5ⁱⁱ	0.85 (2)	1.92 (2)	2.737 (3)	161 (3)
O12—H12O⋯O11ⁱⁱⁱ	0.83 (2)	1.98 (2)	2.797 (3)	167 (3)
Symmetry codes: (i) $[-x+{\script{1\over 2}}, -y, z-{\script{1\over 2}}]$ ; (ii) $[-x+{\script{3\over 2}}, -y+1, z-{\script{1\over 2}}]$ ; (iii) $[-x+{\script{3\over 2}}, -y+2, z+{\script{1\over 2}}]$ .

Data collection: CrysAlis CCD (Oxford Diffraction, 2006 $[Oxford Diffraction (2006). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England.]$ ); cell refinement: CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2006 $[Oxford Diffraction (2006). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England.]$ ); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2001 ); software used to prepare material for publication: SHELXL97, PLATON (Spek, 2009 ) and WinGX (Farrugia, 1999 ).

Supporting information

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S1600536812040378/ds2219sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812040378/ds2219Isup2.hkl

Supporting information file. DOI: https://doi.org/10.1107/S1600536812040378/ds2219Isup3.cml

checkCIF report

Comment top

Indolizines are electron-rich heterocycles with very low oxidation potential. Functionalized indolizines are common substructures found in biologically important natural products and synthetic pharmaceuticals. Due to the various biological functions associated with this skeleton, it has been frequently employed as a key scaffold in the drug industry (Gundersen et al., 2007). Indolizine alkaloids are excellent inhibitors of biologically important pathways. These include the binding and processing of glycoproteins, potent glycosidase inhibitory activities (Pyne, 2005), activity against AIDS virus HIV and some carcinogenic cells (Mikael, 1999). They have also shown to be calcium entry blockers (Gupta et al., 2003) and potent antioxidants inhibiting lipid peroxidation in vitro (Teklu et al., 2005). As such, indolizines are important synthetic targets in view of developing new pharmaceuticals for the treatment of cardiovascular diseases (Gubin et al., 1992). Based on these facts and in contitutation of our interest in developing simple and efficient route for the synthesis of novel indolizine derivatives. The molecular structure and the atom labeling scheme of four independent molecules in the asymmetric unit are shown in Fig. 1. The absolute configuration was established by synthesis and is depicted in the scheme and Fig.1. The expected stereochemistry of atoms C4 and C10, C14 and C20, C24 and C30, C34 and C40 in the four molecules was confirmed as R, R, respectively (Fig. 1). The central six-membered rings of the four molecules according to Nardelli (Nardelli, 1983) is not planar and adopts an envelope conformation, with atoms C10, C20, C30 and C40 as the flaps. The displacements of atoms C10, C20, C30 and C40 from the mean planes of the remaining five atoms are 0.539 (2), 0.548 (3), 0.509 (3) and 0.544 (3) Å, respectively. The bond lengths of the carbonyl groups C=O in the four molecules are somewhat longer than typical carbonyl bonds. This may be due to the fact that atoms O2, O5, O8 and O11 participates in intermolecular hydrogen bonds, they seem to be effective in the stabilization of the structure. The central six-membered rings form dihedral angles of 21.8 (1), 20.1 (1), 24.9 (1) and 22.5 (1)° with the oxopyrrolidine rings, in the four independent molecules, respectively. Intermolecular O–H···O hydrogen bonds link the molecules into extended chains, which run parallel to the c axis (Fig.2).

Related literature top

For background to indolizines and their biological activity, see: Gubin et al. (1992); Gundersen et al. (2007); Gupta et al. (2003); Mikael (1999); Pyne (2005); Teklu et al. (2005). For asymmetry parameters, see: Nardelli (1983).

Experimental top

The title compound (8aR,RS)-9-hydroxy-7,8,8a,9-tetrahydrofuro[3,2-f] indolizin-6(4H)-one was prepared by a reduction of (R)-8,8a-dihydrofuro[3,2-f]indolizine-6,9(4H,7H)-dione with sodium borohydride. To a solution of a freshly crystallized keto-lactam (191 mg, 1 mmoL) in methanol (10 ml) was added in a small portions sodium borohydride (42 mg, 1,1 mmoL) at 0–5°C. The mixture was then stirred at 0°C for 10 h, until total disappearance of starting materials was observed (TLC). The solution was carefully neutralized with 36% HCl, and the solvent was removed under vacuum. The obtained solution was then extracted with dichloromethane (3 x 25 ml). The organic layer was dried over MgSO4, concentrated in vacuo to afford a colourless oil, which quickly crystallized on standing in a fridge. Recrystallization from n-hexane/ethylacetate (9:1) gave colourless crystals of the title compound (150 mg, 78%).

Structure description top

For background to indolizines and their biological activity, see: Gubin et al. (1992); Gundersen et al. (2007); Gupta et al. (2003); Mikael (1999); Pyne (2005); Teklu et al. (2005). For asymmetry parameters, see: Nardelli (1983).

Computing details top

Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell refinement: CrysAlis CCD (Oxford Diffraction, 2006); data reduction: CrysAlis RED (Oxford Diffraction, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2001); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX (Farrugia, 1999).

Figures top

	Fig. 1. Molecular structure of (I) with the atomic numbering scheme of the four independent molecules. Displacement ellipsoids are drawn at the 50% probability level (Brandenburg, 2001).
	Fig. 2. Packing view of (I) and showing the formation of the hydrogen-bonded chains running along the c axis. H atoms have been omitted for clarity.

(8aR,9R)-9-Hydroxy-7,8,8a,9- tetrahydrofuro[3,2-f]indolizin-6(4H)-one top

Crystal data top

C₁₀H₁₁NO₃	F(000) = 1632
M_r = 193.20	D_x = 1.411 Mg m⁻³
Orthorhombic, P2₁2₁2₁	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2ab	Cell parameters from 13239 reflections
a = 14.7603 (10) Å	θ = 2.3–29.5°
b = 15.1301 (17) Å	µ = 0.11 mm⁻¹
c = 16.2847 (9) Å	T = 298 K
V = 3636.8 (5) Å³	Prism, colourless
Z = 16	0.58 × 0.34 × 0.09 mm

Data collection top

Oxford Diffraction Gemini R CCD diffractometer	3581 independent reflections
Radiation source: fine-focus sealed tube	3168 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.036
Detector resolution: 10.4340 pixels mm^-1	θ_max = 25.0°, θ_min = 3.0°
Rotation method data acquisition using ω and φ scans	h = −17→17
Absorption correction: analytical (Clark & Reid, 1995)	k = −18→18
T_min = 0.953, T_max = 0.989	l = −18→19
55202 measured reflections

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.034	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.086	H atoms treated by a mixture of independent and constrained refinement
S = 1.04	w = 1/[σ²(F_o²) + (0.0452P)² + 0.6847P] where P = (F_o² + 2F_c²)/3
3581 reflections	(Δ/σ)_max < 0.001
522 parameters	Δρ_max = 0.17 e Å⁻³
4 restraints	Δρ_min = −0.15 e Å⁻³

Crystal data top

C₁₀H₁₁NO₃	V = 3636.8 (5) Å³
M_r = 193.20	Z = 16
Orthorhombic, P2₁2₁2₁	Mo Kα radiation
a = 14.7603 (10) Å	µ = 0.11 mm⁻¹
b = 15.1301 (17) Å	T = 298 K
c = 16.2847 (9) Å	0.58 × 0.34 × 0.09 mm

Data collection top

Oxford Diffraction Gemini R CCD diffractometer	3581 independent reflections
Absorption correction: analytical (Clark & Reid, 1995)	3168 reflections with I > 2σ(I)
T_min = 0.953, T_max = 0.989	R_int = 0.036
55202 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.034	4 restraints
wR(F²) = 0.086	H atoms treated by a mixture of independent and constrained refinement
S = 1.04	Δρ_max = 0.17 e Å⁻³
3581 reflections	Δρ_min = −0.15 e Å⁻³
522 parameters

Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
C1	0.37091 (18)	−0.0319 (2)	0.96600 (15)	0.0505 (7)
H1B	0.3935	−0.0811	0.9982	0.061*
H1A	0.4014	0.0215	0.9841	0.061*
C2	0.4725 (2)	−0.0647 (2)	0.83402 (17)	0.0564 (8)
H2	0.5299	−0.0706	0.8569	0.068*
C3	0.4509 (2)	−0.0705 (2)	0.75510 (19)	0.0687 (9)
H3	0.4924	−0.0805	0.7131	0.082*
C4	0.22570 (19)	−0.02846 (19)	0.83141 (14)	0.0460 (6)
H4	0.1929	−0.0848	0.8307	0.055*
C5	0.12006 (19)	0.0081 (2)	0.95377 (15)	0.0493 (7)
H5B	0.0837	0.0598	0.9415	0.059*
H5A	0.0889	−0.0441	0.9336	0.059*
C6	0.1382 (2)	0.0008 (2)	1.04619 (15)	0.0552 (8)
H6B	0.1293	0.0574	1.0730	0.066*
H6A	0.0985	−0.0425	1.0713	0.066*
C7	0.2351 (2)	−0.02766 (19)	1.05206 (15)	0.0475 (7)
C8	0.38974 (18)	−0.04746 (18)	0.87672 (14)	0.0435 (6)
C9	0.32426 (19)	−0.04454 (19)	0.81992 (14)	0.0458 (6)
C10	0.21457 (17)	0.01593 (17)	0.91544 (14)	0.0401 (6)
H10	0.2296	0.0787	0.9099	0.048*
C11	0.85665 (16)	0.2162 (2)	0.71399 (14)	0.0440 (6)
H11A	0.8232	0.2569	0.7486	0.053*
H11B	0.8399	0.1564	0.7293	0.053*
C12	0.74899 (17)	0.2316 (2)	0.58353 (16)	0.0467 (6)
H12	0.6925	0.2181	0.6054	0.056*
C13	0.76729 (17)	0.2542 (2)	0.50606 (17)	0.0524 (7)
H13	0.7242	0.2586	0.4646	0.063*
C14	0.99586 (16)	0.26724 (19)	0.58311 (14)	0.0424 (6)
H14	1.0086	0.3302	0.5914	0.051*
C15	1.11005 (17)	0.2440 (2)	0.70238 (15)	0.0488 (7)
H15A	1.1594	0.2057	0.6856	0.059*
H15B	1.1256	0.3046	0.6888	0.059*
C16	1.09142 (17)	0.2346 (2)	0.79415 (15)	0.0510 (7)
H16A	1.1189	0.1811	0.8155	0.061*
H16B	1.1153	0.2849	0.8241	0.061*
C17	0.99049 (17)	0.2306 (2)	0.80141 (14)	0.0454 (6)
C18	0.83367 (16)	0.23212 (18)	0.62607 (14)	0.0392 (6)
C19	0.89690 (16)	0.25498 (17)	0.57055 (13)	0.0391 (6)
C20	1.02126 (16)	0.21675 (18)	0.66021 (14)	0.0397 (6)
H20	1.0246	0.1537	0.6468	0.048*
C21	0.38642 (19)	0.6723 (3)	0.70964 (15)	0.0648 (9)
H21B	0.3492	0.6994	0.7518	0.078*
H21A	0.3754	0.6091	0.7102	0.078*
C22	0.27775 (19)	0.7229 (2)	0.58750 (17)	0.0563 (8)
H22	0.2209	0.7086	0.6082	0.068*
C23	0.29579 (18)	0.7594 (2)	0.51509 (18)	0.0544 (7)
H23	0.2522	0.7751	0.4765	0.065*
C24	0.52638 (17)	0.74252 (19)	0.58671 (14)	0.0446 (6)
H24	0.5454	0.8036	0.5970	0.054*
C25	0.63795 (18)	0.7101 (2)	0.70505 (15)	0.0539 (7)
H25B	0.6854	0.6679	0.6925	0.065*
H25A	0.6580	0.7685	0.6883	0.065*
C26	0.61646 (19)	0.7090 (2)	0.79567 (16)	0.0577 (8)
H26B	0.6483	0.6611	0.8228	0.069*
H26A	0.6340	0.7643	0.8211	0.069*
C27	0.51560 (17)	0.69575 (19)	0.80162 (14)	0.0435 (6)
C28	0.36308 (17)	0.7098 (2)	0.62739 (14)	0.0477 (7)
C29	0.42635 (16)	0.73930 (18)	0.57528 (14)	0.0416 (6)
C30	0.55016 (17)	0.68515 (18)	0.66060 (14)	0.0402 (6)
H30	0.5549	0.6236	0.6423	0.048*
C31	0.88814 (18)	0.9793 (2)	0.52818 (16)	0.0516 (7)
H31A	0.9201	1.0281	0.5025	0.062*
H31B	0.9082	0.9248	0.5027	0.062*
C32	0.99215 (19)	0.9749 (2)	0.66191 (17)	0.0540 (7)
H32	1.0500	0.9713	0.6395	0.065*
C33	0.9707 (2)	0.9787 (2)	0.74150 (17)	0.0605 (8)
H33	1.0127	0.9786	0.7841	0.073*
C34	0.74269 (18)	0.98715 (19)	0.66276 (14)	0.0427 (6)
H34	0.7229	1.0486	0.6695	0.051*
C35	0.63366 (19)	0.9893 (2)	0.53834 (17)	0.0559 (8)
H35B	0.5875	0.9439	0.5422	0.067*
H35A	0.6126	1.0416	0.5670	0.067*
C36	0.6542 (2)	1.0103 (3)	0.45011 (17)	0.0644 (9)
H36B	0.6268	1.0660	0.4344	0.077*
H36A	0.6312	0.9642	0.4143	0.077*
C37	0.7559 (2)	1.0157 (2)	0.44446 (16)	0.0495 (7)
C38	0.90826 (17)	0.97727 (18)	0.61805 (14)	0.0432 (6)
C39	0.84266 (18)	0.98120 (18)	0.67511 (14)	0.0431 (6)
C40	0.72346 (17)	0.95645 (18)	0.57500 (14)	0.0420 (6)
H40	0.7242	0.8917	0.5736	0.050*
N1	0.27316 (15)	−0.02275 (15)	0.97777 (12)	0.0438 (5)
N2	0.95392 (13)	0.22898 (15)	0.72598 (11)	0.0394 (5)
N3	0.48159 (14)	0.69005 (16)	0.72568 (11)	0.0445 (5)
N4	0.79082 (14)	0.99003 (15)	0.51692 (12)	0.0443 (5)
O1	0.35925 (14)	−0.05982 (16)	0.74337 (11)	0.0643 (6)
O2	0.27650 (15)	−0.05083 (16)	1.11433 (10)	0.0666 (6)
O3	0.18597 (15)	0.03090 (19)	0.77435 (11)	0.0726 (7)
O4	0.85804 (12)	0.27000 (15)	0.49559 (10)	0.0526 (5)
O5	0.94469 (13)	0.22702 (18)	0.86442 (10)	0.0684 (7)
O6	1.04954 (13)	0.23539 (19)	0.51857 (11)	0.0707 (7)
O7	0.38731 (13)	0.77089 (14)	0.50474 (11)	0.0534 (5)
O8	0.46942 (13)	0.69031 (16)	0.86436 (10)	0.0597 (8)	0.997 (7)
O9	0.57598 (15)	0.7075 (2)	0.51995 (11)	0.0767 (8)
O10	0.87864 (13)	0.98284 (15)	0.75233 (10)	0.0565 (5)
O11	0.80178 (14)	1.03788 (18)	0.38476 (11)	0.0695 (7)
O12	0.69166 (14)	0.93163 (16)	0.71545 (11)	0.0595 (6)
H3O	0.2085 (19)	0.024 (2)	0.7273 (13)	0.063 (9)*
H6O	1.034 (3)	0.260 (3)	0.4732 (16)	0.096 (13)*
H9O	0.557 (2)	0.726 (2)	0.4740 (14)	0.080 (11)*
H12O	0.702 (2)	0.944 (2)	0.7642 (12)	0.070 (10)*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1	0.0463 (16)	0.0713 (19)	0.0337 (13)	0.0001 (14)	−0.0075 (12)	0.0001 (13)
C2	0.0521 (17)	0.0692 (19)	0.0479 (16)	0.0176 (15)	−0.0010 (14)	−0.0049 (14)
C3	0.062 (2)	0.095 (3)	0.0485 (18)	0.0281 (19)	0.0087 (15)	−0.0073 (17)
C4	0.0547 (16)	0.0569 (17)	0.0265 (12)	0.0028 (14)	−0.0044 (12)	0.0008 (11)
C5	0.0492 (16)	0.0630 (19)	0.0356 (14)	0.0012 (14)	−0.0005 (12)	0.0059 (13)
C6	0.0585 (18)	0.074 (2)	0.0334 (13)	0.0039 (16)	0.0067 (13)	0.0082 (13)
C7	0.0586 (17)	0.0567 (17)	0.0270 (13)	0.0024 (14)	0.0016 (13)	0.0011 (11)
C8	0.0487 (14)	0.0469 (15)	0.0351 (13)	0.0049 (13)	−0.0013 (11)	0.0021 (11)
C9	0.0570 (16)	0.0523 (16)	0.0282 (12)	0.0073 (13)	0.0005 (12)	−0.0037 (12)
C10	0.0459 (15)	0.0437 (14)	0.0307 (12)	−0.0004 (12)	−0.0002 (11)	0.0046 (11)
C11	0.0381 (13)	0.0650 (18)	0.0290 (12)	−0.0092 (12)	0.0016 (11)	0.0032 (12)
C12	0.0360 (13)	0.0655 (17)	0.0385 (14)	−0.0063 (13)	−0.0021 (11)	0.0033 (13)
C13	0.0383 (13)	0.081 (2)	0.0377 (14)	−0.0044 (14)	−0.0066 (12)	0.0073 (14)
C14	0.0354 (13)	0.0597 (16)	0.0322 (12)	0.0023 (12)	0.0064 (10)	0.0050 (12)
C15	0.0366 (13)	0.0696 (19)	0.0402 (13)	0.0038 (13)	−0.0027 (11)	0.0058 (13)
C16	0.0423 (14)	0.074 (2)	0.0364 (13)	0.0063 (14)	−0.0072 (12)	−0.0018 (13)
C17	0.0441 (14)	0.0644 (18)	0.0276 (12)	0.0036 (13)	−0.0016 (11)	−0.0057 (12)
C18	0.0388 (13)	0.0489 (15)	0.0300 (12)	−0.0025 (12)	0.0002 (10)	0.0016 (11)
C19	0.0379 (13)	0.0526 (16)	0.0269 (11)	0.0010 (12)	−0.0013 (10)	0.0008 (11)
C20	0.0390 (13)	0.0499 (15)	0.0301 (12)	0.0048 (12)	0.0037 (10)	0.0016 (11)
C21	0.0465 (16)	0.120 (3)	0.0282 (13)	−0.0248 (18)	0.0024 (12)	0.0046 (15)
C22	0.0431 (15)	0.084 (2)	0.0418 (15)	−0.0075 (15)	0.0009 (13)	−0.0131 (15)
C23	0.0444 (15)	0.0708 (19)	0.0479 (16)	0.0022 (14)	−0.0079 (13)	0.0037 (15)
C24	0.0411 (14)	0.0574 (17)	0.0354 (13)	0.0020 (13)	0.0113 (11)	0.0114 (12)
C25	0.0425 (14)	0.080 (2)	0.0389 (14)	0.0026 (14)	0.0057 (12)	0.0023 (14)
C26	0.0455 (16)	0.091 (2)	0.0362 (14)	0.0039 (15)	0.0000 (12)	0.0066 (15)
C27	0.0448 (14)	0.0570 (17)	0.0286 (12)	0.0020 (13)	0.0011 (12)	0.0025 (12)
C28	0.0405 (14)	0.0725 (19)	0.0302 (12)	−0.0109 (14)	0.0048 (11)	−0.0070 (12)
C29	0.0426 (14)	0.0518 (15)	0.0303 (12)	−0.0005 (12)	0.0036 (11)	0.0008 (12)
C30	0.0437 (14)	0.0469 (15)	0.0299 (12)	−0.0004 (12)	0.0091 (11)	−0.0011 (11)
C31	0.0430 (15)	0.079 (2)	0.0326 (13)	0.0029 (15)	0.0030 (12)	−0.0012 (13)
C32	0.0477 (16)	0.0695 (19)	0.0447 (15)	−0.0013 (14)	−0.0052 (13)	0.0083 (14)
C33	0.0527 (18)	0.089 (2)	0.0401 (15)	−0.0074 (17)	−0.0116 (14)	0.0112 (15)
C34	0.0466 (15)	0.0508 (16)	0.0306 (12)	−0.0007 (12)	0.0057 (11)	−0.0020 (11)
C35	0.0421 (15)	0.081 (2)	0.0444 (15)	0.0020 (15)	−0.0015 (13)	0.0031 (15)
C36	0.0514 (17)	0.096 (3)	0.0458 (16)	0.0099 (17)	−0.0055 (14)	0.0108 (17)
C37	0.0520 (16)	0.0674 (19)	0.0291 (13)	0.0057 (14)	−0.0016 (12)	0.0018 (13)
C38	0.0450 (14)	0.0519 (16)	0.0327 (12)	0.0028 (13)	−0.0006 (11)	0.0034 (11)
C39	0.0502 (15)	0.0506 (15)	0.0286 (12)	0.0000 (13)	−0.0017 (12)	−0.0002 (11)
C40	0.0439 (14)	0.0519 (16)	0.0303 (12)	0.0004 (12)	0.0023 (11)	−0.0014 (11)
N1	0.0482 (12)	0.0587 (14)	0.0245 (10)	0.0018 (11)	−0.0029 (9)	0.0027 (10)
N2	0.0350 (11)	0.0571 (13)	0.0262 (10)	−0.0029 (10)	0.0009 (8)	−0.0008 (9)
N3	0.0382 (12)	0.0712 (15)	0.0241 (10)	−0.0083 (11)	0.0047 (9)	−0.0022 (10)
N4	0.0414 (12)	0.0622 (14)	0.0293 (10)	0.0036 (11)	0.0028 (10)	0.0040 (10)
O1	0.0657 (13)	0.0953 (17)	0.0320 (9)	0.0244 (13)	−0.0005 (9)	−0.0092 (10)
O2	0.0790 (14)	0.0961 (16)	0.0246 (9)	0.0203 (13)	−0.0032 (9)	0.0025 (10)
O3	0.0677 (14)	0.123 (2)	0.0269 (10)	0.0363 (14)	0.0015 (10)	0.0122 (11)
O4	0.0398 (9)	0.0880 (15)	0.0299 (8)	−0.0008 (10)	−0.0017 (8)	0.0116 (10)
O5	0.0515 (11)	0.127 (2)	0.0270 (9)	−0.0015 (13)	0.0019 (9)	−0.0075 (11)
O6	0.0462 (11)	0.134 (2)	0.0322 (10)	0.0249 (13)	0.0103 (9)	0.0193 (13)
O7	0.0500 (11)	0.0663 (13)	0.0440 (10)	0.0019 (10)	0.0007 (9)	0.0168 (10)
O8	0.0482 (12)	0.1068 (18)	0.0241 (10)	−0.0013 (11)	0.0046 (8)	−0.0012 (10)
O9	0.0595 (13)	0.140 (2)	0.0310 (10)	0.0296 (14)	0.0184 (10)	0.0243 (12)
O10	0.0582 (13)	0.0843 (15)	0.0270 (9)	−0.0078 (11)	−0.0046 (8)	0.0028 (9)
O11	0.0577 (12)	0.1188 (19)	0.0319 (10)	−0.0001 (13)	0.0015 (9)	0.0169 (11)
O12	0.0626 (12)	0.0833 (15)	0.0326 (10)	−0.0202 (11)	0.0071 (9)	−0.0007 (10)

Geometric parameters (Å, º) top

C1—N1	1.462 (3)	C21—H21B	0.9700
C1—C8	1.499 (3)	C21—H21A	0.9700
C1—H1B	0.9700	C22—C23	1.329 (4)
C1—H1A	0.9700	C22—C28	1.431 (4)
C2—C3	1.327 (4)	C22—H22	0.9300
C2—C8	1.429 (4)	C23—O7	1.372 (3)
C2—H2	0.9300	C23—H23	0.9300
C3—O1	1.376 (4)	C24—O9	1.414 (3)
C3—H3	0.9300	C24—C29	1.489 (3)
C4—O3	1.419 (3)	C24—C30	1.525 (3)
C4—C9	1.487 (4)	C24—H24	0.9800
C4—C10	1.533 (3)	C25—C26	1.509 (4)
C4—H4	0.9800	C25—C30	1.532 (4)
C5—C6	1.533 (4)	C25—H25B	0.9700
C5—C10	1.533 (4)	C25—H25A	0.9700
C5—H5B	0.9700	C26—C27	1.505 (4)
C5—H5A	0.9700	C26—H26B	0.9700
C6—C7	1.496 (4)	C26—H26A	0.9700
C6—H6B	0.9700	C27—O8	1.231 (3)
C6—H6A	0.9700	C27—N3	1.337 (3)
C7—O2	1.235 (3)	C28—C29	1.339 (3)
C7—N1	1.336 (3)	C29—O7	1.371 (3)
C8—C9	1.338 (3)	C30—N3	1.467 (3)
C9—O1	1.369 (3)	C30—H30	0.9800
C10—N1	1.456 (3)	C31—N4	1.457 (3)
C10—H10	0.9800	C31—C38	1.494 (3)
C11—N2	1.462 (3)	C31—H31A	0.9700
C11—C18	1.491 (3)	C31—H31B	0.9700
C11—H11A	0.9700	C32—C33	1.336 (4)
C11—H11B	0.9700	C32—C38	1.430 (4)
C12—C13	1.335 (4)	C32—H32	0.9300
C12—C18	1.429 (3)	C33—O10	1.371 (3)
C12—H12	0.9300	C33—H33	0.9300
C13—O4	1.371 (3)	C34—O12	1.417 (3)
C13—H13	0.9300	C34—C39	1.492 (4)
C14—O6	1.402 (3)	C34—C40	1.529 (3)
C14—C19	1.487 (3)	C34—H34	0.9800
C14—C20	1.517 (3)	C35—C36	1.502 (4)
C14—H14	0.9800	C35—C40	1.536 (4)
C15—C16	1.526 (3)	C35—H35B	0.9700
C15—C20	1.536 (4)	C35—H35A	0.9700
C15—H15A	0.9700	C36—C37	1.506 (4)
C15—H15B	0.9700	C36—H36B	0.9700
C16—C17	1.496 (4)	C36—H36A	0.9700
C16—H16A	0.9700	C37—O11	1.232 (3)
C16—H16B	0.9700	C37—N4	1.345 (3)
C17—O5	1.230 (3)	C38—C39	1.343 (3)
C17—N2	1.342 (3)	C39—O10	1.365 (3)
C18—C19	1.345 (3)	C40—N4	1.463 (3)
C19—O4	1.368 (3)	C40—H40	0.9800
C20—N2	1.473 (3)	O3—H3O	0.842 (18)
C20—H20	0.9800	O6—H6O	0.855 (19)
C21—N3	1.454 (3)	O9—H9O	0.848 (19)
C21—C28	1.494 (4)	O12—H12O	0.829 (18)

N1—C1—C8	109.0 (2)	C22—C23—H23	124.5
N1—C1—H1B	109.9	O7—C23—H23	124.5
C8—C1—H1B	109.9	O9—C24—C29	113.9 (2)
N1—C1—H1A	109.9	O9—C24—C30	105.9 (2)
C8—C1—H1A	109.9	C29—C24—C30	108.0 (2)
H1B—C1—H1A	108.3	O9—C24—H24	109.6
C3—C2—C8	106.1 (3)	C29—C24—H24	109.6
C3—C2—H2	126.9	C30—C24—H24	109.6
C8—C2—H2	126.9	C26—C25—C30	106.3 (2)
C2—C3—O1	111.3 (3)	C26—C25—H25B	110.5
C2—C3—H3	124.4	C30—C25—H25B	110.5
O1—C3—H3	124.4	C26—C25—H25A	110.5
O3—C4—C9	115.2 (2)	C30—C25—H25A	110.5
O3—C4—C10	105.2 (2)	H25B—C25—H25A	108.7
C9—C4—C10	106.8 (2)	C27—C26—C25	105.8 (2)
O3—C4—H4	109.8	C27—C26—H26B	110.6
C9—C4—H4	109.8	C25—C26—H26B	110.6
C10—C4—H4	109.8	C27—C26—H26A	110.6
C6—C5—C10	104.2 (2)	C25—C26—H26A	110.6
C6—C5—H5B	110.9	H26B—C26—H26A	108.7
C10—C5—H5B	110.9	O8—C27—N3	123.7 (2)
C6—C5—H5A	110.9	O8—C27—C26	127.6 (2)
C10—C5—H5A	110.9	N3—C27—C26	108.7 (2)
H5B—C5—H5A	108.9	C29—C28—C22	106.3 (2)
C7—C6—C5	104.5 (2)	C29—C28—C21	122.3 (2)
C7—C6—H6B	110.8	C22—C28—C21	131.5 (2)
C5—C6—H6B	110.8	C28—C29—O7	110.8 (2)
C7—C6—H6A	110.8	C28—C29—C24	128.6 (2)
C5—C6—H6A	110.8	O7—C29—C24	120.7 (2)
H6B—C6—H6A	108.9	N3—C30—C24	112.5 (2)
O2—C7—N1	123.4 (3)	N3—C30—C25	103.28 (18)
O2—C7—C6	127.4 (2)	C24—C30—C25	115.3 (2)
N1—C7—C6	109.2 (2)	N3—C30—H30	108.5
C9—C8—C2	106.7 (2)	C24—C30—H30	108.5
C9—C8—C1	122.1 (2)	C25—C30—H30	108.5
C2—C8—C1	131.2 (2)	N4—C31—C38	108.8 (2)
C8—C9—O1	110.6 (2)	N4—C31—H31A	109.9
C8—C9—C4	128.7 (2)	C38—C31—H31A	109.9
O1—C9—C4	120.8 (2)	N4—C31—H31B	109.9
N1—C10—C5	103.03 (18)	C38—C31—H31B	109.9
N1—C10—C4	112.5 (2)	H31A—C31—H31B	108.3
C5—C10—C4	115.3 (2)	C33—C32—C38	106.1 (3)
N1—C10—H10	108.6	C33—C32—H32	126.9
C5—C10—H10	108.6	C38—C32—H32	126.9
C4—C10—H10	108.6	C32—C33—O10	111.2 (2)
N2—C11—C18	109.3 (2)	C32—C33—H33	124.4
N2—C11—H11A	109.8	O10—C33—H33	124.4
C18—C11—H11A	109.8	O12—C34—C39	114.1 (2)
N2—C11—H11B	109.8	O12—C34—C40	106.7 (2)
C18—C11—H11B	109.8	C39—C34—C40	106.9 (2)
H11A—C11—H11B	108.3	O12—C34—H34	109.7
C13—C12—C18	106.3 (2)	C39—C34—H34	109.7
C13—C12—H12	126.9	C40—C34—H34	109.7
C18—C12—H12	126.9	C36—C35—C40	105.4 (2)
C12—C13—O4	111.1 (2)	C36—C35—H35B	110.7
C12—C13—H13	124.5	C40—C35—H35B	110.7
O4—C13—H13	124.5	C36—C35—H35A	110.7
O6—C14—C19	114.2 (2)	C40—C35—H35A	110.7
O6—C14—C20	107.9 (2)	H35B—C35—H35A	108.8
C19—C14—C20	107.1 (2)	C35—C36—C37	105.7 (2)
O6—C14—H14	109.2	C35—C36—H36B	110.6
C19—C14—H14	109.2	C37—C36—H36B	110.6
C20—C14—H14	109.2	C35—C36—H36A	110.6
C16—C15—C20	105.0 (2)	C37—C36—H36A	110.6
C16—C15—H15A	110.7	H36B—C36—H36A	108.7
C20—C15—H15A	110.7	O11—C37—N4	124.1 (3)
C16—C15—H15B	110.7	O11—C37—C36	127.7 (3)
C20—C15—H15B	110.7	N4—C37—C36	108.2 (2)
H15A—C15—H15B	108.8	C39—C38—C32	106.2 (2)
C17—C16—C15	105.1 (2)	C39—C38—C31	122.2 (2)
C17—C16—H16A	110.7	C32—C38—C31	131.5 (2)
C15—C16—H16A	110.7	C38—C39—O10	110.9 (2)
C17—C16—H16B	110.7	C38—C39—C34	128.5 (2)
C15—C16—H16B	110.7	O10—C39—C34	120.5 (2)
H16A—C16—H16B	108.8	N4—C40—C34	111.9 (2)
O5—C17—N2	122.8 (2)	N4—C40—C35	102.9 (2)
O5—C17—C16	128.0 (2)	C34—C40—C35	115.2 (2)
N2—C17—C16	109.2 (2)	N4—C40—H40	108.9
C19—C18—C12	106.4 (2)	C34—C40—H40	108.9
C19—C18—C11	122.0 (2)	C35—C40—H40	108.9
C12—C18—C11	131.6 (2)	C7—N1—C10	113.8 (2)
C18—C19—O4	110.6 (2)	C7—N1—C1	121.9 (2)
C18—C19—C14	128.4 (2)	C10—N1—C1	122.2 (2)
O4—C19—C14	120.9 (2)	C17—N2—C11	121.3 (2)
N2—C20—C14	111.8 (2)	C17—N2—C20	113.4 (2)
N2—C20—C15	102.53 (19)	C11—N2—C20	123.30 (19)
C14—C20—C15	116.5 (2)	C27—N3—C21	122.7 (2)
N2—C20—H20	108.6	C27—N3—C30	114.3 (2)
C14—C20—H20	108.6	C21—N3—C30	121.8 (2)
C15—C20—H20	108.6	C37—N4—C31	121.4 (2)
N3—C21—C28	108.3 (2)	C37—N4—C40	114.0 (2)
N3—C21—H21B	110.0	C31—N4—C40	123.4 (2)
C28—C21—H21B	110.0	C9—O1—C3	105.3 (2)
N3—C21—H21A	110.0	C4—O3—H3O	111 (2)
C28—C21—H21A	110.0	C19—O4—C13	105.65 (19)
H21B—C21—H21A	108.4	C14—O6—H6O	111 (3)
C23—C22—C28	106.5 (2)	C29—O7—C23	105.5 (2)
C23—C22—H22	126.8	C24—O9—H9O	112 (2)
C28—C22—H22	126.8	C39—O10—C33	105.4 (2)
C22—C23—O7	111.0 (2)	C34—O12—H12O	111 (2)

C8—C2—C3—O1	−1.1 (4)	C33—C32—C38—C39	−0.8 (3)
C10—C5—C6—C7	−19.8 (3)	C33—C32—C38—C31	176.7 (3)
C5—C6—C7—O2	−171.7 (3)	N4—C31—C38—C39	2.6 (4)
C5—C6—C7—N1	9.6 (4)	N4—C31—C38—C32	−174.6 (3)
C3—C2—C8—C9	0.2 (4)	C32—C38—C39—O10	0.9 (3)
C3—C2—C8—C1	−178.1 (3)	C31—C38—C39—O10	−176.8 (3)
N1—C1—C8—C9	5.4 (4)	C32—C38—C39—C34	178.4 (3)
N1—C1—C8—C2	−176.6 (3)	C31—C38—C39—C34	0.6 (5)
C2—C8—C9—O1	0.7 (3)	O12—C34—C39—C38	136.9 (3)
C1—C8—C9—O1	179.2 (3)	C40—C34—C39—C38	19.2 (4)
C2—C8—C9—C4	−179.8 (3)	O12—C34—C39—O10	−45.9 (4)
C1—C8—C9—C4	−1.4 (5)	C40—C34—C39—O10	−163.6 (2)
O3—C4—C9—C8	135.7 (3)	O12—C34—C40—N4	−163.2 (2)
C10—C4—C9—C8	19.3 (4)	C39—C34—C40—N4	−40.8 (3)
O3—C4—C9—O1	−44.9 (4)	O12—C34—C40—C35	79.8 (3)
C10—C4—C9—O1	−161.3 (2)	C39—C34—C40—C35	−157.8 (2)
C6—C5—C10—N1	22.5 (3)	C36—C35—C40—N4	19.1 (3)
C6—C5—C10—C4	145.4 (2)	C36—C35—C40—C34	141.1 (3)
O3—C4—C10—N1	−163.7 (2)	O2—C7—N1—C10	−173.1 (3)
C9—C4—C10—N1	−40.8 (3)	C6—C7—N1—C10	5.6 (3)
O3—C4—C10—C5	78.6 (3)	O2—C7—N1—C1	−9.3 (5)
C9—C4—C10—C5	−158.5 (2)	C6—C7—N1—C1	169.4 (3)
C18—C12—C13—O4	−0.5 (4)	C5—C10—N1—C7	−18.2 (3)
C20—C15—C16—C17	−16.8 (3)	C4—C10—N1—C7	−142.9 (2)
C15—C16—C17—O5	−176.4 (3)	C5—C10—N1—C1	178.0 (3)
C15—C16—C17—N2	5.2 (4)	C4—C10—N1—C1	53.3 (3)
C13—C12—C18—C19	−0.1 (3)	C8—C1—N1—C7	165.1 (3)
C13—C12—C18—C11	177.2 (3)	C8—C1—N1—C10	−32.4 (4)
N2—C11—C18—C19	−0.3 (4)	O5—C17—N2—C11	−4.6 (5)
N2—C11—C18—C12	−177.3 (3)	C16—C17—N2—C11	173.8 (3)
C12—C18—C19—O4	0.7 (3)	O5—C17—N2—C20	−168.9 (3)
C11—C18—C19—O4	−177.0 (2)	C16—C17—N2—C20	9.5 (3)
C12—C18—C19—C14	178.5 (3)	C18—C11—N2—C17	170.8 (3)
C11—C18—C19—C14	0.9 (5)	C18—C11—N2—C20	−26.5 (4)
O6—C14—C19—C18	140.8 (3)	C14—C20—N2—C17	−145.3 (2)
C20—C14—C19—C18	21.4 (4)	C15—C20—N2—C17	−19.8 (3)
O6—C14—C19—O4	−41.6 (4)	C14—C20—N2—C11	50.7 (3)
C20—C14—C19—O4	−161.0 (2)	C15—C20—N2—C11	176.3 (2)
O6—C14—C20—N2	−165.6 (2)	O8—C27—N3—C21	−3.2 (5)
C19—C14—C20—N2	−42.3 (3)	C26—C27—N3—C21	176.5 (3)
O6—C14—C20—C15	77.0 (3)	O8—C27—N3—C30	−171.4 (3)
C19—C14—C20—C15	−159.7 (2)	C26—C27—N3—C30	8.3 (3)
C16—C15—C20—N2	21.4 (3)	C28—C21—N3—C27	154.5 (3)
C16—C15—C20—C14	143.8 (2)	C28—C21—N3—C30	−38.1 (4)
C28—C22—C23—O7	0.2 (4)	C24—C30—N3—C27	−137.6 (3)
C30—C25—C26—C27	−7.4 (4)	C25—C30—N3—C27	−12.7 (3)
C25—C26—C27—O8	179.6 (3)	C24—C30—N3—C21	54.1 (4)
C25—C26—C27—N3	−0.1 (4)	C25—C30—N3—C21	179.0 (3)
C23—C22—C28—C29	−0.3 (3)	O11—C37—N4—C31	−5.3 (5)
C23—C22—C28—C21	179.4 (3)	C36—C37—N4—C31	173.6 (3)
N3—C21—C28—C29	10.5 (4)	O11—C37—N4—C40	−172.8 (3)
N3—C21—C28—C22	−169.1 (3)	C36—C37—N4—C40	6.1 (4)
C22—C28—C29—O7	0.3 (3)	C38—C31—N4—C37	163.3 (3)
C21—C28—C29—O7	−179.4 (3)	C38—C31—N4—C40	−30.4 (4)
C22—C28—C29—C24	178.9 (3)	C34—C40—N4—C37	−140.3 (2)
C21—C28—C29—C24	−0.8 (5)	C35—C40—N4—C37	−16.1 (3)
O9—C24—C29—C28	131.2 (3)	C34—C40—N4—C31	52.5 (4)
C30—C24—C29—C28	13.9 (4)	C35—C40—N4—C31	176.7 (3)
O9—C24—C29—O7	−50.3 (4)	C8—C9—O1—C3	−1.3 (3)
C30—C24—C29—O7	−167.6 (2)	C4—C9—O1—C3	179.2 (3)
O9—C24—C30—N3	−158.5 (2)	C2—C3—O1—C9	1.5 (4)
C29—C24—C30—N3	−36.1 (3)	C18—C19—O4—C13	−0.9 (3)
O9—C24—C30—C25	83.4 (3)	C14—C19—O4—C13	−179.0 (3)
C29—C24—C30—C25	−154.2 (2)	C12—C13—O4—C19	0.9 (4)
C26—C25—C30—N3	11.5 (3)	C28—C29—O7—C23	−0.2 (3)
C26—C25—C30—C24	134.6 (3)	C24—C29—O7—C23	−178.9 (3)
C38—C32—C33—O10	0.4 (4)	C22—C23—O7—C29	0.0 (3)
C40—C35—C36—C37	−16.3 (4)	C38—C39—O10—C33	−0.7 (3)
C35—C36—C37—O11	−174.2 (3)	C34—C39—O10—C33	−178.4 (3)
C35—C36—C37—N4	7.0 (4)	C32—C33—O10—C39	0.1 (4)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O3—H3O···O2ⁱ	0.84 (2)	1.90 (2)	2.681 (2)	154 (3)
O6—H6O···O8ⁱⁱ	0.86 (2)	1.93 (2)	2.766 (3)	166 (4)
O9—H9O···O5ⁱⁱ	0.85 (2)	1.92 (2)	2.737 (3)	161 (3)
O12—H12O···O11ⁱⁱⁱ	0.83 (2)	1.98 (2)	2.797 (3)	167 (3)

Symmetry codes: (i) −x+1/2, −y, z−1/2; (ii) −x+3/2, −y+1, z−1/2; (iii) −x+3/2, −y+2, z+1/2.

Experimental details

Crystal data
Chemical formula	C₁₀H₁₁NO₃
M_r	193.20
Crystal system, space group	Orthorhombic, P2₁2₁2₁
Temperature (K)	298
a, b, c (Å)	14.7603 (10), 15.1301 (17), 16.2847 (9)
V (Å³)	3636.8 (5)
Z	16
Radiation type	Mo Kα
µ (mm⁻¹)	0.11
Crystal size (mm)	0.58 × 0.34 × 0.09

Data collection
Diffractometer	Oxford Diffraction Gemini R CCD
Absorption correction	Analytical (Clark & Reid, 1995)
T_min, T_max	0.953, 0.989
No. of measured, independent and observed [I > 2σ(I)] reflections	55202, 3581, 3168
R_int	0.036
(sin θ/λ)_max (Å⁻¹)	0.595

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.034, 0.086, 1.04
No. of reflections	3581
No. of parameters	522
No. of restraints	4
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.17, −0.15

Computer programs: CrysAlis CCD (Oxford Diffraction, 2006), CrysAlis RED (Oxford Diffraction, 2006), SHELXS97 (Sheldrick, 2008), DIAMOND (Brandenburg, 2001), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and WinGX (Farrugia, 1999).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O3—H3O···O2ⁱ	0.842 (18)	1.90 (2)	2.681 (2)	154 (3)
O6—H6O···O8ⁱⁱ	0.855 (19)	1.93 (2)	2.766 (3)	166 (4)
O9—H9O···O5ⁱⁱ	0.848 (19)	1.92 (2)	2.737 (3)	161 (3)
O12—H12O···O11ⁱⁱⁱ	0.829 (18)	1.98 (2)	2.797 (3)	167 (3)

Symmetry codes: (i) −x+1/2, −y, z−1/2; (ii) −x+3/2, −y+1, z−1/2; (iii) −x+3/2, −y+2, z+1/2.

Acknowledgements

The authors thank the Grant Agency of Slovak Republic (grant Nos. 1/0429/11, 1/0679/11) and the Slovak Research and Development Agency (under contract Nos. APVV-0797–11 and APVV-0204–10) for financial support of these research programs.

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