3-{2-[(3-Phenyl­quinoxalin-2-yl)­oxy]ethyl}-1,3-oxazolidin-2-one

Daouda, B.; Brelot, L.; Doumbia, M.L.; Essassi, E.M.; Ng, S.W.

doi:10.1107/S1600536811014632

organic compounds

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 67| Part 5| May 2011| Page o1235

doi:10.1107/S1600536811014632

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3-{2-[(3-Phenylquinoxalin-2-yl)oxy]ethyl}-1,3-oxazolidin-2-one

Ballo Daouda,^a Lydia Brelot,^b Mouhamadou Lamine Doumbia,^a El Mokhtar Essassi ^a and Seik Weng Ng ^c ^*

^aLaboratoire de Chimie Organique Hétérocyclique, Pôle de Compétences Pharmacochimie, Université Mohammed V-Agdal, BP 1014 Avenue Ibn Batout, Rabat, Morocco, ^bService de Radiocristallographie, Institut de Chimie UMR 7177, CNRS-UdS Tour de Chimie, Rez-de-chaussée 1 rue Blaise Pascal, BP 296/R867008, Strasbourg Cedex, France, and ^cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
^*Correspondence e-mail: seikweng@um.edu.my

(Received 17 April 2011; accepted 19 April 2011; online 29 April 2011)

The asymmetric unit of the title compound, C₁₉H₁₇N₃O₃, consists of two independent molecules that are disposed about a pseudo-centre of inversion. The plane of the phenyl substituent is twisted by 38.1 (1)° [43.6 (1)° in the second molecule] out of the plane of the quinoxaline ring system. The five-membered ring of the substituent at the 2-position adopts an envelope conformation; the 5-CH₂ atom representing the flap lies out of the plane defined by the other four atoms [deviation 0.264 (7) Å in the first molecule and 0.291 (6) Å in the second]. The dihedral angle between the five-membered ring and the 4-phenyl ring is 84.9 (1)° while that between the five-membered ring and the 5-phenyl ring is 65.6 (1)°.

Related literature

For the crystal structure of 3-[2-(3-methylquinoxalin-2-yloxy)ethyl]-1,3-oxazolidin-2-one, see: Ahoya et al. (2010 ).

Experimental

Crystal data

C₁₉H₁₇N₃O₃
M_r = 335.36
Orthorhombic, P c a 2₁
a = 10.1392 (4) Å
b = 9.1398 (4) Å
c = 34.8462 (15) Å
V = 3229.2 (2) Å³
Z = 8
Mo Kα radiation
μ = 0.10 mm⁻¹
T = 173 K
0.40 × 0.35 × 0.30 mm

Data collection

Bruker X8 APEXII diffractometer
25550 measured reflections
4767 independent reflections
4101 reflections with I > 2σ(I)
R_int = 0.029

Refinement

R[F² > 2σ(F²)] = 0.047
wR(F²) = 0.123
S = 1.03
4767 reflections
451 parameters
1 restraint
H-atom parameters constrained
Δρ_max = 0.32 e Å⁻³
Δρ_min = −0.21 e Å⁻³
Absolute structure: 4149 Friedel pairs merged

Data collection: APEX2 (Bruker, 2008 ); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001 ); software used to prepare material for publication: publCIF (Westrip, 2010 ).

Supporting information

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536811014632/bt5521sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536811014632/bt5521Isup2.hkl

checkCIF report

Comment top

A recent study reports the crystal structure of 3-[2-(3-methylquinoxalin-2-yloxy)ethyl]-1,3-oxazolidin-2-one (Ahoya et al., 2010). The present study reports the 3-phenyl analog (Scheme I). The asymmetric unit consists of two independent molecules that are disposed about a pseudo center-of-inversion (Fig. 1). The phenyl substituent of the 3-position of the quinoxaline ring is twisted by 38.1 (1)° [43.6 (1)° in the second molecule]. The five-membering ring of the substituent at the 2-position adopts the shape of an envelope; the 5-CH₂ atom representing the flap lies out of the plane defined by the other four atoms [deviation 0.264 (7) Å in the first molecule and 0.291 (6) Å in the second molecule].

Related literature top

For the crystal structure of 3-[2-(3-methylquinoxalin-2-yloxy)ethyl]-1,3-oxazolidin-2-one, see: Ahoya et al. (2010).

Experimental top

3-Phenyl-quinoxalin-2-one (1.25 mmol, 0.28 g), di(chloroethyl)amine hydrochloride (2.66 mmol, 0.50 g), potassium carbonate (4.00 mmol, 0.52 g) and tetra-n-butylammonium bromide (0.01 mmol, 0.003 g) were heated in DMF (40 ml); the progress of the reaction was monitored by thin layer chromatography. On completion, the solvent was removed under reduced pressure and the residue was chromatographed on silica column (n-hexane/ethyl acetate:4/6). Recrystallization was effected by using the sample solvent system.

Computing details top

Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top

Fig. 1. Anisotropic displacement ellipsoid plot (Barbour, 2001) of two independent molecules of C₁₉H₁₇N₃O₃ disposed about a pseudo center-of-inversion at the 70% probability level; H atoms are drawn as arbitrary radius.

3-{2-[(3-Phenylquinoxalin-2-yl)oxy]ethyl}-1,3-oxazolidin-2-one top

Crystal data top

C₁₉H₁₇N₃O₃	F(000) = 1408
M_r = 335.36	D_x = 1.380 Mg m⁻³
Orthorhombic, Pca2₁	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2c -2ac	Cell parameters from 9872 reflections
a = 10.1392 (4) Å	θ = 2.3–30.0°
b = 9.1398 (4) Å	µ = 0.10 mm⁻¹
c = 34.8462 (15) Å	T = 173 K
V = 3229.2 (2) Å³	Prism, colourless
Z = 8	0.40 × 0.35 × 0.30 mm

Data collection top

Bruker X8 APEXII diffractometer	4101 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	R_int = 0.029
Graphite monochromator	θ_max = 30.0°, θ_min = 2.5°
ϕ and ω scans	h = −14→14
25550 measured reflections	k = −12→12
4767 independent reflections	l = −49→47

Refinement top

Refinement on F²	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F² > 2σ(F²)] = 0.047	H-atom parameters constrained
wR(F²) = 0.123	w = 1/[σ²(F_o²) + (0.0525P)² + 1.9526P] where P = (F_o² + 2F_c²)/3
S = 1.03	(Δ/σ)_max = 0.001
4767 reflections	Δρ_max = 0.32 e Å⁻³
451 parameters	Δρ_min = −0.21 e Å⁻³
1 restraint	Absolute structure: 4149 Friedel pairs merged
Primary atom site location: structure-invariant direct methods

Crystal data top

C₁₉H₁₇N₃O₃	V = 3229.2 (2) Å³
M_r = 335.36	Z = 8
Orthorhombic, Pca2₁	Mo Kα radiation
a = 10.1392 (4) Å	µ = 0.10 mm⁻¹
b = 9.1398 (4) Å	T = 173 K
c = 34.8462 (15) Å	0.40 × 0.35 × 0.30 mm

Data collection top

Bruker X8 APEXII diffractometer	4101 reflections with I > 2σ(I)
25550 measured reflections	R_int = 0.029
4767 independent reflections

Refinement top

R[F² > 2σ(F²)] = 0.047	1 restraint
wR(F²) = 0.123	H-atom parameters constrained
S = 1.03	Δρ_max = 0.32 e Å⁻³
4767 reflections	Δρ_min = −0.21 e Å⁻³
451 parameters	Absolute structure: 4149 Friedel pairs merged

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

	x	y	z	U_iso*/U_eq
O1	0.3755 (2)	0.6241 (2)	0.49991 (7)	0.0238 (4)
O2	0.1310 (2)	0.3976 (3)	0.55878 (9)	0.0433 (6)
O3	0.2900 (3)	0.3586 (3)	0.60256 (7)	0.0380 (6)
O4	0.3780 (2)	0.8711 (2)	0.79097 (7)	0.0236 (5)
O5	0.6231 (2)	1.1037 (3)	0.73247 (9)	0.0426 (6)
O6	0.4633 (2)	1.1405 (3)	0.68853 (7)	0.0378 (6)
N1	0.5295 (2)	0.7359 (3)	0.46162 (7)	0.0231 (5)
N2	0.4634 (3)	1.0015 (3)	0.49854 (11)	0.0229 (7)
N3	0.3471 (2)	0.3614 (3)	0.54162 (8)	0.0251 (5)
N4	0.2237 (2)	0.7592 (3)	0.82911 (7)	0.0218 (5)
N5	0.2891 (3)	0.4944 (3)	0.79247 (12)	0.0257 (7)
N6	0.4059 (2)	1.1361 (3)	0.74966 (8)	0.0233 (5)
C1	0.5889 (3)	0.8656 (4)	0.45148 (9)	0.0238 (7)
C2	0.6894 (3)	0.8632 (4)	0.42211 (8)	0.0264 (7)
H2	0.7162	0.7739	0.4105	0.032*
C3	0.7450 (5)	0.9938 (4)	0.41148 (15)	0.0316 (10)
H3	0.8122	0.9931	0.3925	0.038*
C4	0.7080 (3)	1.1262 (5)	0.42711 (10)	0.0307 (8)
H4	0.7466	1.2147	0.4183	0.037*
C5	0.6123 (4)	1.1283 (4)	0.45641 (10)	0.0293 (7)
H5	0.5876	1.2180	0.4681	0.035*
C6	0.5546 (3)	0.9977 (3)	0.46791 (10)	0.0232 (8)
C7	0.4435 (3)	0.7436 (3)	0.48952 (8)	0.0208 (5)
C8	0.4129 (2)	0.8775 (3)	0.50968 (8)	0.0205 (5)
C9	0.3280 (3)	0.8803 (3)	0.54447 (8)	0.0221 (5)
C10	0.3353 (3)	0.7709 (4)	0.57228 (8)	0.0268 (6)
H10	0.3893	0.6875	0.5681	0.032*
C11	0.2637 (3)	0.7835 (4)	0.60623 (9)	0.0333 (7)
H11	0.2688	0.7088	0.6251	0.040*
C12	0.1847 (3)	0.9053 (4)	0.61239 (9)	0.0354 (8)
H12	0.1376	0.9154	0.6358	0.042*
C13	0.1748 (4)	1.0128 (4)	0.58411 (14)	0.0321 (9)
H13	0.1169	1.0935	0.5875	0.038*
C14	0.2494 (5)	1.0014 (3)	0.55127 (15)	0.0298 (10)
H14	0.2469	1.0781	0.5329	0.036*
C15	0.4161 (4)	0.4879 (3)	0.48313 (12)	0.0251 (8)
H15A	0.5103	0.4689	0.4888	0.030*
H15B	0.4044	0.4907	0.4549	0.030*
C16	0.3308 (3)	0.3702 (4)	0.50051 (10)	0.0271 (7)
H16A	0.2372	0.3907	0.4945	0.033*
H16B	0.3539	0.2747	0.4889	0.033*
C17	0.2459 (3)	0.3749 (3)	0.56612 (10)	0.0295 (6)
C18	0.4324 (4)	0.3412 (6)	0.60200 (11)	0.0493 (10)
H18A	0.4597	0.2588	0.6186	0.059*
H18B	0.4766	0.4315	0.6109	0.059*
C19	0.4661 (3)	0.3101 (4)	0.56046 (9)	0.0269 (6)
H19A	0.5447	0.3657	0.5520	0.032*
H19B	0.4808	0.2044	0.5559	0.032*
C20	0.1637 (3)	0.6307 (4)	0.84002 (9)	0.0209 (6)
C21	0.0673 (3)	0.6295 (4)	0.86756 (11)	0.0289 (7)
H21	0.0413	0.7194	0.8790	0.035*
C22	0.0066 (5)	0.5014 (4)	0.87928 (13)	0.0317 (11)
H22	−0.0590	0.5017	0.8988	0.038*
C23	0.0464 (4)	0.3684 (4)	0.86090 (11)	0.0327 (8)
H23	0.0046	0.2795	0.8681	0.039*
C24	0.1396 (4)	0.3652 (4)	0.83418 (13)	0.0319 (8)
H24	0.1646	0.2742	0.8232	0.038*
C25	0.2034 (4)	0.4973 (3)	0.82158 (12)	0.0237 (8)
C26	0.3085 (3)	0.7517 (3)	0.80137 (8)	0.0205 (5)
C27	0.3400 (3)	0.6188 (3)	0.78065 (8)	0.0215 (5)
C28	0.4249 (3)	0.6163 (3)	0.74596 (8)	0.0216 (5)
C29	0.4178 (3)	0.7269 (4)	0.71840 (9)	0.0277 (6)
H29	0.3636	0.8102	0.7227	0.033*
C30	0.4903 (3)	0.7147 (4)	0.68470 (9)	0.0333 (7)
H30	0.4852	0.7897	0.6659	0.040*
C31	0.5706 (3)	0.5932 (4)	0.67837 (10)	0.0352 (7)
H31	0.6195	0.5855	0.6552	0.042*
C32	0.5793 (5)	0.4847 (4)	0.70545 (15)	0.0358 (10)
H32	0.6336	0.4017	0.7009	0.043*
C33	0.5080 (4)	0.4961 (3)	0.73990 (14)	0.0237 (9)
H33	0.5162	0.4225	0.7590	0.028*
C34	0.3381 (4)	1.0076 (3)	0.80828 (14)	0.0258 (8)
H34A	0.3516	1.0042	0.8364	0.031*
H34B	0.2435	1.0265	0.8032	0.031*
C35	0.4223 (3)	1.1268 (3)	0.79058 (9)	0.0225 (6)
H35A	0.3987	1.2220	0.8023	0.027*
H35B	0.5162	1.1072	0.7965	0.027*
C36	0.5075 (3)	1.1237 (3)	0.72500 (10)	0.0283 (6)
C37	0.3211 (4)	1.1544 (5)	0.68928 (11)	0.0441 (9)
H37A	0.2787	1.0623	0.6808	0.053*
H37B	0.2918	1.2347	0.6722	0.053*
C38	0.2867 (3)	1.1876 (3)	0.73069 (9)	0.0264 (6)
H38A	0.2724	1.2936	0.7349	0.032*
H38B	0.2078	1.1327	0.7392	0.032*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O1	0.0227 (10)	0.0214 (10)	0.0272 (10)	0.0002 (9)	0.0067 (8)	−0.0008 (8)
O2	0.0246 (10)	0.0476 (15)	0.0577 (16)	0.0079 (10)	0.0092 (11)	0.0058 (13)
O3	0.0388 (13)	0.0437 (14)	0.0314 (12)	0.0074 (11)	0.0109 (10)	0.0041 (11)
O4	0.0293 (11)	0.0163 (9)	0.0252 (10)	−0.0016 (8)	0.0032 (9)	−0.0011 (8)
O5	0.0239 (11)	0.0443 (14)	0.0596 (17)	0.0070 (10)	0.0094 (11)	0.0058 (13)
O6	0.0382 (13)	0.0409 (14)	0.0342 (12)	0.0083 (11)	0.0118 (10)	0.0039 (11)
N1	0.0240 (10)	0.0263 (12)	0.0190 (10)	0.0006 (9)	0.0022 (8)	0.0018 (9)
N2	0.0232 (16)	0.0223 (15)	0.0231 (15)	−0.0025 (8)	0.0064 (13)	0.0012 (9)
N3	0.0206 (10)	0.0283 (13)	0.0263 (12)	0.0009 (9)	0.0006 (9)	0.0047 (10)
N4	0.0238 (11)	0.0215 (11)	0.0201 (10)	−0.0001 (9)	−0.0031 (8)	−0.0013 (9)
N5	0.0267 (17)	0.0215 (16)	0.0289 (17)	0.0000 (9)	−0.0015 (14)	−0.0010 (9)
N6	0.0191 (10)	0.0226 (11)	0.0281 (12)	0.0002 (9)	0.0021 (9)	0.0030 (10)
C1	0.0219 (13)	0.0323 (17)	0.0173 (12)	−0.0003 (12)	0.0013 (10)	0.0039 (12)
C2	0.0294 (14)	0.0388 (18)	0.0109 (11)	−0.0004 (13)	0.0079 (11)	−0.0013 (12)
C3	0.029 (2)	0.041 (3)	0.026 (2)	−0.0077 (12)	0.0040 (16)	0.0064 (12)
C4	0.0256 (15)	0.0408 (19)	0.0256 (15)	−0.0087 (14)	0.0061 (12)	0.0095 (14)
C5	0.0314 (16)	0.0314 (17)	0.0251 (15)	−0.0041 (14)	0.0011 (12)	0.0051 (14)
C6	0.0150 (13)	0.041 (2)	0.0132 (14)	−0.0022 (10)	0.0051 (12)	0.0045 (10)
C7	0.0210 (11)	0.0216 (13)	0.0199 (12)	−0.0006 (10)	−0.0003 (9)	0.0022 (10)
C8	0.0177 (11)	0.0246 (13)	0.0191 (11)	0.0001 (10)	0.0002 (9)	0.0003 (10)
C9	0.0193 (11)	0.0236 (13)	0.0234 (12)	−0.0032 (10)	0.0016 (9)	−0.0031 (11)
C10	0.0263 (13)	0.0334 (15)	0.0207 (12)	−0.0014 (12)	0.0007 (10)	0.0001 (12)
C11	0.0333 (15)	0.0439 (18)	0.0227 (13)	−0.0083 (14)	−0.0002 (11)	0.0020 (14)
C12	0.0290 (15)	0.052 (2)	0.0250 (14)	−0.0129 (14)	0.0094 (12)	−0.0111 (14)
C13	0.0248 (17)	0.0318 (18)	0.040 (2)	−0.0047 (12)	0.0084 (16)	−0.0117 (14)
C14	0.0236 (17)	0.032 (2)	0.034 (3)	−0.0045 (11)	0.0093 (15)	−0.0036 (12)
C15	0.035 (2)	0.0204 (16)	0.0197 (17)	0.0014 (11)	0.0060 (14)	−0.0005 (10)
C16	0.0282 (15)	0.0248 (15)	0.0283 (14)	−0.0025 (12)	−0.0027 (12)	0.0000 (13)
C17	0.0297 (14)	0.0204 (13)	0.0384 (16)	0.0025 (12)	0.0078 (12)	0.0047 (13)
C18	0.0375 (18)	0.082 (3)	0.0287 (17)	0.0145 (19)	0.0006 (14)	0.0080 (19)
C19	0.0222 (12)	0.0308 (15)	0.0278 (13)	0.0016 (11)	−0.0015 (11)	0.0009 (12)
C20	0.0219 (13)	0.0229 (14)	0.0180 (12)	−0.0011 (11)	−0.0073 (10)	−0.0006 (11)
C21	0.0255 (14)	0.0301 (16)	0.0311 (16)	0.0009 (13)	−0.0028 (12)	−0.0037 (14)
C22	0.027 (2)	0.051 (3)	0.0172 (18)	−0.0041 (13)	−0.0003 (14)	0.0041 (12)
C23	0.0376 (17)	0.0300 (17)	0.0305 (17)	−0.0089 (14)	−0.0037 (14)	0.0071 (15)
C24	0.0309 (16)	0.0213 (16)	0.043 (2)	−0.0030 (13)	0.0021 (14)	0.0012 (15)
C25	0.0278 (17)	0.0116 (14)	0.032 (2)	−0.0009 (9)	−0.0067 (15)	0.0007 (9)
C26	0.0214 (11)	0.0179 (12)	0.0223 (12)	0.0000 (10)	−0.0047 (9)	−0.0006 (10)
C27	0.0219 (12)	0.0196 (12)	0.0229 (12)	−0.0001 (10)	0.0015 (9)	−0.0013 (10)
C28	0.0194 (11)	0.0249 (13)	0.0205 (12)	−0.0026 (10)	0.0016 (9)	−0.0041 (11)
C29	0.0263 (13)	0.0281 (14)	0.0287 (14)	0.0001 (12)	−0.0017 (11)	0.0003 (12)
C30	0.0342 (15)	0.0446 (19)	0.0210 (13)	−0.0078 (14)	0.0007 (11)	0.0033 (14)
C31	0.0323 (16)	0.046 (2)	0.0279 (15)	−0.0129 (14)	0.0085 (12)	−0.0145 (14)
C32	0.0286 (19)	0.0362 (19)	0.043 (2)	−0.0036 (14)	0.0104 (18)	−0.0176 (16)
C33	0.0234 (17)	0.0167 (16)	0.031 (2)	−0.0016 (9)	−0.0030 (14)	−0.0027 (10)
C34	0.0269 (18)	0.0196 (16)	0.0310 (19)	0.0011 (10)	−0.0013 (15)	−0.0046 (11)
C35	0.0219 (13)	0.0165 (12)	0.0290 (14)	−0.0025 (11)	−0.0013 (11)	−0.0021 (11)
C36	0.0278 (14)	0.0212 (13)	0.0358 (16)	0.0032 (11)	0.0082 (12)	0.0026 (12)
C37	0.0394 (18)	0.064 (3)	0.0284 (16)	0.0063 (17)	−0.0006 (14)	0.0040 (17)
C38	0.0216 (12)	0.0284 (14)	0.0293 (14)	0.0007 (11)	−0.0016 (11)	−0.0013 (12)

Geometric parameters (Å, º) top

O1—C7	1.342 (3)	C13—H13	0.9500
O1—C15	1.436 (4)	C14—H14	0.9500
O2—C17	1.210 (4)	C15—C16	1.508 (5)
O3—C17	1.355 (4)	C15—H15A	0.9900
O3—C18	1.452 (5)	C15—H15B	0.9900
O4—C26	1.349 (4)	C16—H16A	0.9900
O4—C34	1.444 (4)	C16—H16B	0.9900
O5—C36	1.214 (4)	C18—C19	1.514 (5)
O6—C36	1.356 (4)	C18—H18A	0.9900
O6—C37	1.448 (4)	C18—H18B	0.9900
N1—C7	1.308 (4)	C19—H19A	0.9900
N1—C1	1.376 (4)	C19—H19B	0.9900
N2—C8	1.303 (4)	C20—C21	1.370 (5)
N2—C6	1.413 (5)	C20—C25	1.436 (5)
N3—C17	1.341 (4)	C21—C22	1.385 (5)
N3—C16	1.444 (4)	C21—H21	0.9500
N3—C19	1.451 (4)	C22—C23	1.432 (6)
N4—C26	1.295 (4)	C22—H22	0.9500
N4—C20	1.376 (4)	C23—C24	1.327 (6)
N5—C27	1.316 (4)	C23—H23	0.9500
N5—C25	1.336 (5)	C24—C25	1.438 (5)
N6—C36	1.347 (4)	C24—H24	0.9500
N6—C35	1.438 (4)	C26—C27	1.448 (4)
N6—C38	1.456 (4)	C27—C28	1.484 (4)
C1—C6	1.380 (5)	C28—C29	1.397 (4)
C1—C2	1.445 (4)	C28—C33	1.401 (4)
C2—C3	1.372 (5)	C29—C30	1.390 (4)
C2—H2	0.9500	C29—H29	0.9500
C3—C4	1.379 (6)	C30—C31	1.395 (5)
C3—H3	0.9500	C30—H30	0.9500
C4—C5	1.409 (5)	C31—C32	1.372 (6)
C4—H4	0.9500	C31—H31	0.9500
C5—C6	1.389 (5)	C32—C33	1.405 (7)
C5—H5	0.9500	C32—H32	0.9500
C7—C8	1.445 (4)	C33—H33	0.9500
C8—C9	1.487 (4)	C34—C35	1.515 (5)
C9—C14	1.385 (5)	C34—H34A	0.9900
C9—C10	1.394 (4)	C34—H34B	0.9900
C10—C11	1.393 (4)	C35—H35A	0.9900
C10—H10	0.9500	C35—H35B	0.9900
C11—C12	1.388 (5)	C37—C38	1.515 (5)
C11—H11	0.9500	C37—H37A	0.9900
C12—C13	1.396 (6)	C37—H37B	0.9900
C12—H12	0.9500	C38—H38A	0.9900
C13—C14	1.375 (7)	C38—H38B	0.9900

C7—O1—C15	116.6 (2)	H18A—C18—H18B	108.8
C17—O3—C18	109.1 (3)	N3—C19—C18	100.6 (3)
C26—O4—C34	116.1 (3)	N3—C19—H19A	111.7
C36—O6—C37	108.8 (2)	C18—C19—H19A	111.7
C7—N1—C1	115.8 (3)	N3—C19—H19B	111.7
C8—N2—C6	117.4 (3)	C18—C19—H19B	111.7
C17—N3—C16	122.6 (3)	H19A—C19—H19B	109.4
C17—N3—C19	112.2 (3)	C21—C20—N4	121.0 (3)
C16—N3—C19	124.2 (3)	C21—C20—C25	120.4 (3)
C26—N4—C20	117.0 (3)	N4—C20—C25	118.5 (3)
C27—N5—C25	118.4 (3)	C20—C21—C22	122.1 (4)
C36—N6—C35	122.6 (3)	C20—C21—H21	119.0
C36—N6—C38	111.9 (3)	C22—C21—H21	119.0
C35—N6—C38	124.4 (2)	C21—C22—C23	117.4 (4)
N1—C1—C6	122.5 (3)	C21—C22—H22	121.3
N1—C1—C2	118.5 (3)	C23—C22—H22	121.3
C6—C1—C2	119.0 (3)	C24—C23—C22	122.2 (4)
C3—C2—C1	117.9 (4)	C24—C23—H23	118.9
C3—C2—H2	121.0	C22—C23—H23	118.9
C1—C2—H2	121.0	C23—C24—C25	121.0 (4)
C2—C3—C4	123.0 (4)	C23—C24—H24	119.5
C2—C3—H3	118.5	C25—C24—H24	119.5
C4—C3—H3	118.5	N5—C25—C20	122.6 (3)
C3—C4—C5	119.1 (4)	N5—C25—C24	120.5 (3)
C3—C4—H4	120.5	C20—C25—C24	116.8 (4)
C5—C4—H4	120.5	N4—C26—O4	120.3 (3)
C6—C5—C4	119.2 (4)	N4—C26—C27	124.3 (3)
C6—C5—H5	120.4	O4—C26—C27	115.4 (2)
C4—C5—H5	120.4	N5—C27—C26	118.8 (3)
C1—C6—C5	121.7 (3)	N5—C27—C28	118.0 (3)
C1—C6—N2	120.0 (3)	C26—C27—C28	123.2 (3)
C5—C6—N2	118.2 (3)	C29—C28—C33	119.7 (3)
N1—C7—O1	120.0 (3)	C29—C28—C27	121.2 (3)
N1—C7—C8	123.4 (3)	C33—C28—C27	119.0 (3)
O1—C7—C8	116.6 (2)	C30—C29—C28	119.7 (3)
N2—C8—C7	120.5 (3)	C30—C29—H29	120.1
N2—C8—C9	117.1 (3)	C28—C29—H29	120.1
C7—C8—C9	122.4 (2)	C29—C30—C31	120.4 (3)
C14—C9—C10	119.0 (3)	C29—C30—H30	119.8
C14—C9—C8	119.1 (3)	C31—C30—H30	119.8
C10—C9—C8	121.6 (3)	C32—C31—C30	120.3 (3)
C9—C10—C11	120.2 (3)	C32—C31—H31	119.9
C9—C10—H10	119.9	C30—C31—H31	119.9
C11—C10—H10	119.9	C31—C32—C33	120.1 (4)
C12—C11—C10	119.9 (3)	C31—C32—H32	120.0
C12—C11—H11	120.1	C33—C32—H32	120.0
C10—C11—H11	120.1	C28—C33—C32	119.8 (4)
C11—C12—C13	119.8 (3)	C28—C33—H33	120.1
C11—C12—H12	120.1	C32—C33—H33	120.1
C13—C12—H12	120.1	O4—C34—C35	107.0 (3)
C14—C13—C12	119.6 (4)	O4—C34—H34A	110.3
C14—C13—H13	120.2	C35—C34—H34A	110.3
C12—C13—H13	120.2	O4—C34—H34B	110.3
C13—C14—C9	121.3 (4)	C35—C34—H34B	110.3
C13—C14—H14	119.3	H34A—C34—H34B	108.6
C9—C14—H14	119.3	N6—C35—C34	112.4 (3)
O1—C15—C16	106.9 (3)	N6—C35—H35A	109.1
O1—C15—H15A	110.3	C34—C35—H35A	109.1
C16—C15—H15A	110.3	N6—C35—H35B	109.1
O1—C15—H15B	110.3	C34—C35—H35B	109.1
C16—C15—H15B	110.3	H35A—C35—H35B	107.9
H15A—C15—H15B	108.6	O5—C36—N6	127.9 (3)
N3—C16—C15	111.9 (3)	O5—C36—O6	122.5 (3)
N3—C16—H16A	109.2	N6—C36—O6	109.6 (3)
C15—C16—H16A	109.2	O6—C37—C38	105.3 (3)
N3—C16—H16B	109.2	O6—C37—H37A	110.7
C15—C16—H16B	109.2	C38—C37—H37A	110.7
H16A—C16—H16B	107.9	O6—C37—H37B	110.7
O2—C17—N3	128.2 (3)	C38—C37—H37B	110.7
O2—C17—O3	122.3 (3)	H37A—C37—H37B	108.8
N3—C17—O3	109.5 (3)	N6—C38—C37	100.1 (3)
O3—C18—C19	105.0 (3)	N6—C38—H38A	111.7
O3—C18—H18A	110.8	C37—C38—H38A	111.7
C19—C18—H18A	110.8	N6—C38—H38B	111.7
O3—C18—H18B	110.8	C37—C38—H38B	111.7
C19—C18—H18B	110.8	H38A—C38—H38B	109.5

C7—N1—C1—C6	−3.9 (5)	C26—N4—C20—C21	−176.2 (3)
C7—N1—C1—C2	177.0 (3)	C26—N4—C20—C25	3.1 (4)
N1—C1—C2—C3	178.1 (4)	N4—C20—C21—C22	−179.3 (3)
C6—C1—C2—C3	−1.0 (5)	C25—C20—C21—C22	1.4 (5)
C1—C2—C3—C4	−0.9 (7)	C20—C21—C22—C23	−1.2 (6)
C2—C3—C4—C5	2.5 (7)	C21—C22—C23—C24	1.4 (6)
C3—C4—C5—C6	−2.1 (5)	C22—C23—C24—C25	−1.6 (6)
N1—C1—C6—C5	−177.8 (3)	C27—N5—C25—C20	0.8 (5)
C2—C1—C6—C5	1.3 (5)	C27—N5—C25—C24	176.6 (4)
N1—C1—C6—N2	5.4 (5)	C21—C20—C25—N5	174.5 (3)
C2—C1—C6—N2	−175.5 (3)	N4—C20—C25—N5	−4.9 (5)
C4—C5—C6—C1	0.2 (5)	C21—C20—C25—C24	−1.5 (5)
C4—C5—C6—N2	177.1 (3)	N4—C20—C25—C24	179.2 (3)
C8—N2—C6—C1	−1.2 (5)	C23—C24—C25—N5	−174.4 (4)
C8—N2—C6—C5	−178.1 (4)	C23—C24—C25—C20	1.7 (6)
C1—N1—C7—O1	176.3 (3)	C20—N4—C26—O4	−175.3 (3)
C1—N1—C7—C8	−1.5 (4)	C20—N4—C26—C27	2.2 (4)
C15—O1—C7—N1	9.0 (4)	C34—O4—C26—N4	−8.9 (4)
C15—O1—C7—C8	−173.0 (3)	C34—O4—C26—C27	173.4 (3)
C6—N2—C8—C7	−4.0 (5)	C25—N5—C27—C26	4.4 (5)
C6—N2—C8—C9	173.8 (3)	C25—N5—C27—C28	−174.2 (3)
N1—C7—C8—N2	5.7 (4)	N4—C26—C27—N5	−6.3 (5)
O1—C7—C8—N2	−172.3 (3)	O4—C26—C27—N5	171.2 (3)
N1—C7—C8—C9	−172.0 (3)	N4—C26—C27—C28	172.2 (3)
O1—C7—C8—C9	10.1 (4)	O4—C26—C27—C28	−10.2 (4)
N2—C8—C9—C14	34.6 (4)	N5—C27—C28—C29	140.0 (3)
C7—C8—C9—C14	−147.7 (3)	C26—C27—C28—C29	−38.6 (4)
N2—C8—C9—C10	−138.9 (3)	N5—C27—C28—C33	−36.4 (4)
C7—C8—C9—C10	38.8 (4)	C26—C27—C28—C33	145.1 (3)
C14—C9—C10—C11	0.4 (5)	C33—C28—C29—C30	1.8 (5)
C8—C9—C10—C11	173.9 (3)	C27—C28—C29—C30	−174.4 (3)
C9—C10—C11—C12	0.0 (5)	C28—C29—C30—C31	−0.4 (5)
C10—C11—C12—C13	1.7 (5)	C29—C30—C31—C32	−0.3 (5)
C11—C12—C13—C14	−3.8 (6)	C30—C31—C32—C33	−0.5 (6)
C12—C13—C14—C9	4.3 (7)	C29—C28—C33—C32	−2.7 (5)
C10—C9—C14—C13	−2.6 (6)	C27—C28—C33—C32	173.7 (3)
C8—C9—C14—C13	−176.3 (4)	C31—C32—C33—C28	2.0 (6)
C7—O1—C15—C16	177.1 (3)	C26—O4—C34—C35	−176.2 (3)
C17—N3—C16—C15	123.2 (3)	C36—N6—C35—C34	−123.1 (3)
C19—N3—C16—C15	−69.1 (4)	C38—N6—C35—C34	69.5 (4)
O1—C15—C16—N3	−60.9 (4)	O4—C34—C35—N6	60.0 (4)
C16—N3—C17—O2	−1.2 (5)	C35—N6—C36—O5	0.0 (5)
C19—N3—C17—O2	−170.2 (3)	C38—N6—C36—O5	168.8 (3)
C16—N3—C17—O3	178.6 (3)	C35—N6—C36—O6	−178.5 (3)
C19—N3—C17—O3	9.6 (4)	C38—N6—C36—O6	−9.7 (4)
C18—O3—C17—O2	−176.8 (4)	C37—O6—C36—O5	177.0 (3)
C18—O3—C17—N3	3.4 (4)	C37—O6—C36—N6	−4.4 (4)
C17—O3—C18—C19	−14.1 (4)	C36—O6—C37—C38	15.8 (4)
C17—N3—C19—C18	−17.4 (4)	C36—N6—C38—C37	18.4 (4)
C16—N3—C19—C18	173.9 (3)	C35—N6—C38—C37	−173.1 (3)
O3—C18—C19—N3	18.0 (4)	O6—C37—C38—N6	−19.7 (4)

Experimental details

Crystal data
Chemical formula	C₁₉H₁₇N₃O₃
M_r	335.36
Crystal system, space group	Orthorhombic, Pca2₁
Temperature (K)	173
a, b, c (Å)	10.1392 (4), 9.1398 (4), 34.8462 (15)
V (Å³)	3229.2 (2)
Z	8
Radiation type	Mo Kα
µ (mm⁻¹)	0.10
Crystal size (mm)	0.40 × 0.35 × 0.30

Data collection
Diffractometer	Bruker X8 APEXII diffractometer
Absorption correction	–
No. of measured, independent and observed [I > 2σ(I)] reflections	25550, 4767, 4101
R_int	0.029
(sin θ/λ)_max (Å⁻¹)	0.704

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.047, 0.123, 1.03
No. of reflections	4767
No. of parameters	451
No. of restraints	1
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.32, −0.21
Absolute structure	4149 Friedel pairs merged

Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).

Acknowledgements

The authors thank the Université Mohammed V-Agdal and the University of Malaya for supporting this study.

References

Ahoya, C. A., Bouhfid, R., Daouda, B., Essassi, E. M. & El Ammari, L. (2010). Acta Cryst. E66, o1050. Web of Science CSD CrossRef IUCr Journals Google Scholar
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar