organic compounds
3-Ethyl-8-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)quinolin-2(1H)-one
aDepartment of Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Nám. T. G. Masaryka 275, Zlín,762 72, Czech Republic, bDepartment of Chemistry, Faculty of Science, Masaryk University in Brno, Kamenice 5, Brno–Bohunice, 625 00, Czech Republic, and cDepartment of Chemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, 1000 Ljubljana, Slovenia
*Correspondence e-mail: rvicha@ft.utb.cz
The structure of the title compound, C26H31NO12, contains an essentially planar quinoline skeleton, with the maximum deviation from the best plane being 0.055 (2) Å, and an oxane ring in a classical chair conformation with the following Cremer and Pople puckering parameters: Q = 0.586 (2) Å, θ = 11.5 (2)° and φ = 309.4 (10)°. One acetyl group displays rotational disorder with occupancies of 0.634 (8):0.366 (8). The crystal packing is stabilized by N—H⋯O hydrogen bonds, which link molecules into chains along the a axis. The packing is further stabilized by weak C—H⋯O interactions. The absolute configurations on the carbons in the oxane ring correspond to those of the commercial starting material and are unchanged in the well known mechanism of the Koenigs–Knorr synthesis.
Related literature
For the synthesis of related compounds and their biological activity, see Kimmel et al. (2010); Suzuki et al. (2007). For puckering parameters, see Cremer & Pople (1975).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810016636/nk2031sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810016636/nk2031Isup2.hkl
The title compound was synthesised by Koenigs-Knorr glucosylation of 3-ethyl-4-hydroxy-8-methoxyquinolin-2(1H)-one with acetobromo-α-D-glucose in the presence of caesium carbonate in acetonitrile medium as described recently (Kimmel et al., 2010). The crystal used for data collection was obtained by crystallisation from ethanol at room temperature.
The disordered acetyl group was modeled over two sites using similarity restraints to maintain a reasonable geometry and displacement parameters. The two sites are occupied in a 63:37 ratio. Hydrogen atoms were positioned geometrically and refined as riding using standard SHELXTL constraints, with their Uiso set to either 1.2Ueq or 1.5Ueq (methyl) of their parent atoms. In the absence of significant
Friedel pairs were merged.The title compound represents one of the first selectively 4-O-glucosylated N-unsubstituted 4-hydroxyquinolin-2(1H)-ones with potential antimicrobial activity (Kimmel et al., 2010). Several previously prepared saccharide functionalized quinoline derivatives possess interesting bioactivities e.g. as antimalaric agents (Suzuki et al., 2007).
The structure of the title compound (Fig. 1) consists of an essentially planar quinoline ring with the maximum deviation from the best plane being of 0.055 (2)Å for C6 and an oxane ring in classical chair conformation with Cremer & Pople (1975) puckering parameters being Q = 0.586 (2) Å, θ= 11.5 (2) and φ= 309.4 (10)°. The torsion angles describing alignment of peracetylated glucose unit, ethyl in the C2 position and methoxy group in the C8 position C2—C3—O3—C13, C3—O3—C13—O4, C1—C2—C11—C12 and C9—C8—O2—C10 are 103.2 (2), -73.23 (18), 66.1 (3) and -175.86 (19)° respectively. The acetyl group on the O5 was refined using a two-part disorder model with occupancies being 0.634 (8):0.366 (8). The absolute configurations on C14—C17 correspond to those in starting material and inversion on C13 is in agreement with the well known mechanism of Koenigs-Knorr synthesis. The molecules are linked via N1—H1···O1 H-bonds (Fig. 2, Table 1) into chains parallel to the a-axis. The packing of the crystal is stabilized by further C—H···O weak interactions (Table 1).
For the synthesis of related compounds and their biological activity, see Kimmel et al. (2010); Suzuki et al. (2007). For puckering parameters, see Cremer & Pople (1975).
Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell
CrysAlis RED (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: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C26H31NO12 | Dx = 1.298 Mg m−3 |
Mr = 549.52 | Melting point = 452–455 K |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 17385 reflections |
a = 5.36993 (11) Å | θ = 3.1–27.2° |
b = 19.2205 (6) Å | µ = 0.10 mm−1 |
c = 27.2479 (6) Å | T = 150 K |
V = 2812.33 (11) Å3 | Block, colourless |
Z = 4 | 0.40 × 0.40 × 0.30 mm |
F(000) = 1160 |
Kuma KM-4 CCD diffractometer | 3429 independent reflections |
Radiation source: fine-focus sealed tube | 2990 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.020 |
Detector resolution: 0.06 pixels mm-1 | θmax = 27.3°, θmin = 3.1° |
ω scan | h = −6→6 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2006) | k = −13→24 |
Tmin = 0.918, Tmax = 0.967 | l = −34→34 |
32021 measured reflections |
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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.080 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0384P)2 + 0.5245P] where P = (Fo2 + 2Fc2)/3 |
3429 reflections | (Δ/σ)max < 0.001 |
387 parameters | Δρmax = 0.17 e Å−3 |
81 restraints | Δρmin = −0.13 e Å−3 |
C26H31NO12 | V = 2812.33 (11) Å3 |
Mr = 549.52 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 5.36993 (11) Å | µ = 0.10 mm−1 |
b = 19.2205 (6) Å | T = 150 K |
c = 27.2479 (6) Å | 0.40 × 0.40 × 0.30 mm |
Kuma KM-4 CCD diffractometer | 3429 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2006) | 2990 reflections with I > 2σ(I) |
Tmin = 0.918, Tmax = 0.967 | Rint = 0.020 |
32021 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 81 restraints |
wR(F2) = 0.080 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.17 e Å−3 |
3429 reflections | Δρmin = −0.13 e Å−3 |
387 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2σ(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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O1 | 0.8708 (3) | 0.25786 (7) | 0.53327 (5) | 0.0341 (3) | |
O2 | 1.3082 (3) | 0.37931 (8) | 0.41238 (6) | 0.0427 (4) | |
O3 | 0.4748 (3) | 0.47871 (7) | 0.53992 (5) | 0.0271 (3) | |
O4 | 0.6219 (3) | 0.48949 (7) | 0.61770 (5) | 0.0282 (3) | |
O5 | 0.6116 (3) | 0.45605 (8) | 0.71945 (5) | 0.0410 (4) | |
O6 | 0.5932 (3) | 0.62765 (8) | 0.70831 (5) | 0.0350 (3) | |
O7 | 0.2195 (3) | 0.66554 (7) | 0.64089 (5) | 0.0315 (3) | |
O8 | 0.3834 (3) | 0.62367 (7) | 0.53780 (5) | 0.0281 (3) | |
O9 | −0.0246 (3) | 0.64890 (8) | 0.54408 (6) | 0.0426 (4) | |
O10 | 0.3960 (4) | 0.76681 (8) | 0.62089 (7) | 0.0567 (5) | |
O11 | 0.2632 (5) | 0.59852 (14) | 0.75466 (8) | 0.0878 (9) | |
N1 | 1.0003 (3) | 0.34410 (8) | 0.48366 (6) | 0.0270 (4) | |
H1 | 1.1186 | 0.3166 | 0.4726 | 0.032* | |
C1 | 0.8445 (4) | 0.31841 (10) | 0.51878 (7) | 0.0275 (4) | |
C2 | 0.6558 (4) | 0.36595 (10) | 0.53815 (7) | 0.0277 (4) | |
C3 | 0.6499 (4) | 0.43204 (10) | 0.52114 (7) | 0.0252 (4) | |
C4 | 0.8076 (4) | 0.45683 (10) | 0.48212 (7) | 0.0248 (4) | |
C5 | 0.7871 (4) | 0.52319 (10) | 0.46025 (7) | 0.0306 (4) | |
H5 | 0.6672 | 0.5556 | 0.4719 | 0.037* | |
C6 | 0.9409 (5) | 0.54054 (11) | 0.42219 (8) | 0.0369 (5) | |
H6 | 0.9236 | 0.5848 | 0.4071 | 0.044* | |
C7 | 1.1230 (5) | 0.49464 (11) | 0.40506 (8) | 0.0363 (5) | |
H7 | 1.2315 | 0.5083 | 0.3793 | 0.044* | |
C8 | 1.1447 (4) | 0.42976 (11) | 0.42563 (7) | 0.0312 (5) | |
C9 | 0.9848 (4) | 0.41033 (10) | 0.46433 (7) | 0.0256 (4) | |
C10 | 1.4892 (5) | 0.39485 (14) | 0.37598 (8) | 0.0436 (6) | |
H10A | 1.6029 | 0.3553 | 0.3724 | 0.065* | |
H10B | 1.5837 | 0.4362 | 0.3858 | 0.065* | |
H10C | 1.4058 | 0.4038 | 0.3446 | 0.065* | |
C11 | 0.4782 (5) | 0.33763 (11) | 0.57576 (8) | 0.0391 (5) | |
H11A | 0.3952 | 0.2960 | 0.5620 | 0.047* | |
H11B | 0.3480 | 0.3729 | 0.5821 | 0.047* | |
C12 | 0.5982 (7) | 0.31787 (14) | 0.62423 (9) | 0.0614 (8) | |
H12A | 0.4688 | 0.3042 | 0.6477 | 0.092* | |
H12B | 0.6905 | 0.3578 | 0.6372 | 0.092* | |
H12C | 0.7128 | 0.2789 | 0.6191 | 0.092* | |
C13 | 0.5741 (4) | 0.52634 (10) | 0.57359 (6) | 0.0238 (4) | |
H13 | 0.7309 | 0.5474 | 0.5605 | 0.029* | |
C14 | 0.7213 (4) | 0.53372 (11) | 0.65513 (7) | 0.0275 (4) | |
H14 | 0.8610 | 0.5618 | 0.6411 | 0.033* | |
C15 | 0.5099 (4) | 0.58234 (11) | 0.66957 (7) | 0.0269 (4) | |
H15 | 0.3631 | 0.5546 | 0.6809 | 0.032* | |
C16 | 0.4377 (4) | 0.62670 (10) | 0.62631 (7) | 0.0255 (4) | |
H16 | 0.5763 | 0.6595 | 0.6183 | 0.031* | |
C17 | 0.3777 (4) | 0.58191 (10) | 0.58157 (6) | 0.0240 (4) | |
H17 | 0.2101 | 0.5599 | 0.5855 | 0.029* | |
C18 | 0.8190 (4) | 0.48969 (12) | 0.69638 (8) | 0.0348 (5) | |
H18A | 0.9367 | 0.4545 | 0.6835 | 0.042* | |
H18B | 0.9082 | 0.5191 | 0.7205 | 0.042* | |
C21 | 0.4515 (6) | 0.63038 (14) | 0.74961 (9) | 0.0497 (7) | |
C22 | 0.5634 (8) | 0.68002 (18) | 0.78556 (10) | 0.0779 (11) | |
H22A | 0.5080 | 0.6680 | 0.8188 | 0.117* | |
H22B | 0.5103 | 0.7275 | 0.7777 | 0.117* | |
H22C | 0.7454 | 0.6771 | 0.7838 | 0.117* | |
C23 | 0.2251 (4) | 0.73549 (11) | 0.63784 (8) | 0.0308 (5) | |
C24 | −0.0071 (5) | 0.76662 (13) | 0.65782 (10) | 0.0443 (6) | |
H24A | 0.0278 | 0.8137 | 0.6698 | 0.067* | |
H24B | −0.0689 | 0.7379 | 0.6849 | 0.067* | |
H24C | −0.1333 | 0.7688 | 0.6319 | 0.067* | |
C25 | 0.1693 (4) | 0.65329 (11) | 0.52218 (8) | 0.0322 (5) | |
C26 | 0.2118 (5) | 0.69197 (13) | 0.47544 (9) | 0.0469 (6) | |
H26A | 0.0592 | 0.6913 | 0.4557 | 0.070* | |
H26B | 0.3469 | 0.6698 | 0.4570 | 0.070* | |
H26C | 0.2573 | 0.7402 | 0.4829 | 0.070* | |
C19B | 0.647 (2) | 0.4064 (9) | 0.7485 (5) | 0.069 (3) | 0.366 (8) |
C20B | 0.435 (3) | 0.3921 (15) | 0.7846 (9) | 0.060 (4) | 0.366 (8) |
H20D | 0.5040 | 0.3813 | 0.8170 | 0.090* | 0.366 (8) |
H20E | 0.3359 | 0.3526 | 0.7729 | 0.090* | 0.366 (8) |
H20F | 0.3280 | 0.4334 | 0.7870 | 0.090* | 0.366 (8) |
O12B | 0.8449 (12) | 0.3784 (5) | 0.7519 (4) | 0.093 (3) | 0.366 (8) |
C19A | 0.6517 (12) | 0.4270 (4) | 0.7636 (3) | 0.0563 (18) | 0.634 (8) |
C20A | 0.415 (2) | 0.3870 (9) | 0.7769 (5) | 0.072 (3) | 0.634 (8) |
H20A | 0.4502 | 0.3554 | 0.8043 | 0.108* | 0.634 (8) |
H20B | 0.3589 | 0.3601 | 0.7485 | 0.108* | 0.634 (8) |
H20C | 0.2846 | 0.4199 | 0.7866 | 0.108* | 0.634 (8) |
O12A | 0.8390 (7) | 0.4347 (4) | 0.78546 (18) | 0.106 (2) | 0.634 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0389 (8) | 0.0191 (7) | 0.0443 (8) | −0.0035 (7) | −0.0025 (8) | 0.0028 (6) |
O2 | 0.0448 (9) | 0.0399 (9) | 0.0435 (9) | 0.0117 (8) | 0.0165 (8) | 0.0028 (7) |
O3 | 0.0281 (7) | 0.0235 (7) | 0.0297 (6) | −0.0004 (6) | 0.0014 (6) | −0.0070 (6) |
O4 | 0.0362 (8) | 0.0239 (7) | 0.0245 (6) | −0.0009 (7) | 0.0008 (6) | 0.0002 (5) |
O5 | 0.0425 (9) | 0.0482 (10) | 0.0324 (7) | −0.0075 (9) | −0.0021 (8) | 0.0118 (7) |
O6 | 0.0384 (8) | 0.0382 (8) | 0.0284 (7) | −0.0048 (8) | −0.0019 (7) | −0.0103 (6) |
O7 | 0.0265 (7) | 0.0268 (7) | 0.0411 (8) | 0.0006 (7) | 0.0070 (7) | −0.0093 (7) |
O8 | 0.0290 (7) | 0.0282 (7) | 0.0270 (6) | 0.0002 (6) | 0.0013 (6) | 0.0025 (6) |
O9 | 0.0273 (8) | 0.0374 (9) | 0.0632 (11) | 0.0003 (7) | −0.0016 (8) | 0.0107 (8) |
O10 | 0.0527 (11) | 0.0316 (8) | 0.0859 (13) | 0.0056 (9) | 0.0298 (11) | 0.0093 (9) |
O11 | 0.0876 (17) | 0.125 (2) | 0.0504 (12) | −0.0470 (17) | 0.0358 (12) | −0.0397 (13) |
N1 | 0.0300 (8) | 0.0204 (8) | 0.0307 (8) | 0.0027 (8) | 0.0022 (8) | −0.0023 (7) |
C1 | 0.0309 (10) | 0.0215 (10) | 0.0301 (10) | −0.0050 (9) | −0.0028 (9) | −0.0030 (8) |
C2 | 0.0327 (10) | 0.0243 (10) | 0.0261 (9) | −0.0053 (9) | −0.0006 (9) | −0.0022 (8) |
C3 | 0.0267 (10) | 0.0232 (10) | 0.0257 (9) | 0.0001 (9) | −0.0009 (8) | −0.0046 (8) |
C4 | 0.0306 (10) | 0.0228 (10) | 0.0211 (8) | −0.0002 (9) | −0.0019 (8) | −0.0012 (8) |
C5 | 0.0405 (11) | 0.0232 (10) | 0.0280 (9) | 0.0066 (10) | 0.0011 (10) | −0.0018 (8) |
C6 | 0.0526 (14) | 0.0266 (10) | 0.0314 (10) | 0.0016 (11) | 0.0022 (11) | 0.0046 (9) |
C7 | 0.0441 (13) | 0.0352 (12) | 0.0295 (10) | −0.0011 (11) | 0.0088 (10) | 0.0040 (9) |
C8 | 0.0348 (11) | 0.0297 (11) | 0.0291 (10) | 0.0020 (10) | 0.0035 (10) | −0.0041 (9) |
C9 | 0.0301 (10) | 0.0220 (9) | 0.0247 (9) | −0.0002 (9) | −0.0013 (9) | −0.0013 (8) |
C10 | 0.0365 (12) | 0.0600 (16) | 0.0343 (11) | 0.0046 (12) | 0.0084 (10) | −0.0072 (11) |
C11 | 0.0511 (14) | 0.0244 (10) | 0.0417 (12) | −0.0068 (11) | 0.0122 (12) | −0.0019 (9) |
C12 | 0.105 (2) | 0.0386 (14) | 0.0412 (13) | −0.0053 (17) | 0.0132 (17) | 0.0093 (11) |
C13 | 0.0262 (9) | 0.0231 (10) | 0.0221 (8) | −0.0013 (9) | 0.0018 (8) | −0.0009 (8) |
C14 | 0.0259 (10) | 0.0302 (11) | 0.0264 (9) | −0.0040 (9) | 0.0020 (8) | 0.0004 (8) |
C15 | 0.0296 (10) | 0.0276 (10) | 0.0236 (9) | −0.0070 (10) | 0.0016 (8) | −0.0045 (8) |
C16 | 0.0223 (9) | 0.0247 (10) | 0.0296 (10) | 0.0000 (8) | 0.0044 (8) | −0.0034 (8) |
C17 | 0.0236 (9) | 0.0228 (9) | 0.0256 (9) | −0.0019 (9) | 0.0028 (8) | 0.0009 (8) |
C18 | 0.0314 (11) | 0.0381 (13) | 0.0351 (11) | −0.0016 (11) | −0.0024 (9) | 0.0043 (10) |
C21 | 0.0624 (18) | 0.0572 (16) | 0.0293 (11) | −0.0063 (15) | 0.0029 (12) | −0.0125 (11) |
C22 | 0.106 (3) | 0.086 (2) | 0.0415 (14) | −0.011 (2) | −0.0116 (18) | −0.0300 (15) |
C23 | 0.0347 (11) | 0.0293 (11) | 0.0285 (10) | 0.0024 (10) | 0.0012 (9) | −0.0034 (9) |
C24 | 0.0385 (12) | 0.0371 (12) | 0.0574 (15) | 0.0064 (12) | 0.0064 (12) | −0.0096 (11) |
C25 | 0.0342 (12) | 0.0221 (10) | 0.0403 (11) | −0.0028 (9) | −0.0071 (10) | 0.0008 (9) |
C26 | 0.0532 (15) | 0.0409 (13) | 0.0467 (13) | −0.0018 (13) | −0.0088 (12) | 0.0115 (11) |
C19B | 0.046 (4) | 0.102 (7) | 0.060 (6) | 0.000 (4) | −0.008 (4) | 0.047 (5) |
C20B | 0.047 (5) | 0.080 (8) | 0.054 (6) | −0.003 (6) | −0.009 (4) | 0.009 (6) |
O12B | 0.048 (3) | 0.129 (6) | 0.102 (6) | 0.011 (4) | 0.000 (4) | 0.088 (5) |
C19A | 0.036 (2) | 0.089 (5) | 0.045 (3) | 0.007 (3) | 0.004 (2) | 0.029 (3) |
C20A | 0.055 (4) | 0.094 (6) | 0.066 (6) | −0.010 (4) | 0.010 (4) | 0.054 (5) |
O12A | 0.050 (2) | 0.195 (6) | 0.072 (3) | −0.024 (3) | −0.017 (2) | 0.077 (4) |
O1—C1 | 1.237 (2) | C11—H11A | 0.9900 |
O2—C8 | 1.357 (3) | C11—H11B | 0.9900 |
O2—C10 | 1.421 (3) | C12—H12A | 0.9800 |
O3—C3 | 1.397 (2) | C12—H12B | 0.9800 |
O3—C13 | 1.402 (2) | C12—H12C | 0.9800 |
O4—C13 | 1.419 (2) | C13—C17 | 1.516 (3) |
O4—C14 | 1.431 (2) | C13—H13 | 1.0000 |
O5—C19B | 1.256 (15) | C14—C18 | 1.502 (3) |
O5—C19A | 1.342 (8) | C14—C15 | 1.522 (3) |
O5—C18 | 1.433 (3) | C14—H14 | 1.0000 |
O6—C21 | 1.359 (3) | C15—C16 | 1.506 (3) |
O6—C15 | 1.440 (2) | C15—H15 | 1.0000 |
O7—C23 | 1.347 (3) | C16—C17 | 1.527 (3) |
O7—C16 | 1.445 (2) | C16—H16 | 1.0000 |
O8—C25 | 1.351 (3) | C17—H17 | 1.0000 |
O8—C17 | 1.438 (2) | C18—H18A | 0.9900 |
O9—C25 | 1.203 (3) | C18—H18B | 0.9900 |
O10—C23 | 1.191 (3) | C21—C22 | 1.494 (4) |
O11—C21 | 1.190 (3) | C22—H22A | 0.9800 |
N1—C1 | 1.364 (3) | C22—H22B | 0.9800 |
N1—C9 | 1.380 (3) | C22—H22C | 0.9800 |
N1—H1 | 0.8800 | C23—C24 | 1.486 (3) |
C1—C2 | 1.463 (3) | C24—H24A | 0.9800 |
C2—C3 | 1.353 (3) | C24—H24B | 0.9800 |
C2—C11 | 1.502 (3) | C24—H24C | 0.9800 |
C3—C4 | 1.440 (3) | C25—C26 | 1.492 (3) |
C4—C9 | 1.393 (3) | C26—H26A | 0.9800 |
C4—C5 | 1.412 (3) | C26—H26B | 0.9800 |
C5—C6 | 1.367 (3) | C26—H26C | 0.9800 |
C5—H5 | 0.9500 | C19B—O12B | 1.195 (12) |
C6—C7 | 1.397 (3) | C19B—C20B | 1.529 (14) |
C6—H6 | 0.9500 | C20B—H20D | 0.9800 |
C7—C8 | 1.372 (3) | C20B—H20E | 0.9800 |
C7—H7 | 0.9500 | C20B—H20F | 0.9800 |
C8—C9 | 1.410 (3) | C19A—O12A | 1.179 (7) |
C10—H10A | 0.9800 | C19A—C20A | 1.529 (10) |
C10—H10B | 0.9800 | C20A—H20A | 0.9800 |
C10—H10C | 0.9800 | C20A—H20B | 0.9800 |
C11—C12 | 1.518 (4) | C20A—H20C | 0.9800 |
C8—O2—C10 | 118.57 (17) | O4—C14—H14 | 109.1 |
C3—O3—C13 | 113.78 (15) | C18—C14—H14 | 109.1 |
C13—O4—C14 | 112.00 (14) | C15—C14—H14 | 109.1 |
C19B—O5—C19A | 25.1 (8) | O6—C15—C16 | 108.14 (16) |
C19B—O5—C18 | 120.2 (6) | O6—C15—C14 | 109.22 (17) |
C19A—O5—C18 | 117.1 (3) | C16—C15—C14 | 109.70 (15) |
C21—O6—C15 | 117.16 (18) | O6—C15—H15 | 109.9 |
C23—O7—C16 | 118.72 (17) | C16—C15—H15 | 109.9 |
C25—O8—C17 | 118.58 (16) | C14—C15—H15 | 109.9 |
C1—N1—C9 | 124.38 (18) | O7—C16—C15 | 106.62 (15) |
C1—N1—H1 | 117.8 | O7—C16—C17 | 109.87 (15) |
C9—N1—H1 | 117.8 | C15—C16—C17 | 111.11 (16) |
O1—C1—N1 | 119.63 (19) | O7—C16—H16 | 109.7 |
O1—C1—C2 | 123.48 (19) | C15—C16—H16 | 109.7 |
N1—C1—C2 | 116.87 (17) | C17—C16—H16 | 109.7 |
C3—C2—C1 | 118.65 (18) | O8—C17—C13 | 105.04 (14) |
C3—C2—C11 | 123.99 (19) | O8—C17—C16 | 110.07 (15) |
C1—C2—C11 | 117.36 (17) | C13—C17—C16 | 111.41 (16) |
C2—C3—O3 | 119.58 (17) | O8—C17—H17 | 110.1 |
C2—C3—C4 | 123.35 (18) | C13—C17—H17 | 110.1 |
O3—C3—C4 | 116.99 (16) | C16—C17—H17 | 110.1 |
C9—C4—C5 | 119.09 (18) | O5—C18—C14 | 108.13 (17) |
C9—C4—C3 | 116.51 (17) | O5—C18—H18A | 110.1 |
C5—C4—C3 | 124.36 (19) | C14—C18—H18A | 110.1 |
C6—C5—C4 | 119.6 (2) | O5—C18—H18B | 110.1 |
C6—C5—H5 | 120.2 | C14—C18—H18B | 110.1 |
C4—C5—H5 | 120.2 | H18A—C18—H18B | 108.4 |
C5—C6—C7 | 121.5 (2) | O11—C21—O6 | 123.5 (2) |
C5—C6—H6 | 119.3 | O11—C21—C22 | 126.5 (3) |
C7—C6—H6 | 119.3 | O6—C21—C22 | 110.0 (3) |
C8—C7—C6 | 119.8 (2) | C21—C22—H22A | 109.5 |
C8—C7—H7 | 120.1 | C21—C22—H22B | 109.5 |
C6—C7—H7 | 120.1 | H22A—C22—H22B | 109.5 |
O2—C8—C7 | 126.5 (2) | C21—C22—H22C | 109.5 |
O2—C8—C9 | 113.80 (18) | H22A—C22—H22C | 109.5 |
C7—C8—C9 | 119.6 (2) | H22B—C22—H22C | 109.5 |
N1—C9—C4 | 120.02 (18) | O10—C23—O7 | 123.1 (2) |
N1—C9—C8 | 119.53 (18) | O10—C23—C24 | 125.8 (2) |
C4—C9—C8 | 120.42 (18) | O7—C23—C24 | 111.1 (2) |
O2—C10—H10A | 109.5 | C23—C24—H24A | 109.5 |
O2—C10—H10B | 109.5 | C23—C24—H24B | 109.5 |
H10A—C10—H10B | 109.5 | H24A—C24—H24B | 109.5 |
O2—C10—H10C | 109.5 | C23—C24—H24C | 109.5 |
H10A—C10—H10C | 109.5 | H24A—C24—H24C | 109.5 |
H10B—C10—H10C | 109.5 | H24B—C24—H24C | 109.5 |
C2—C11—C12 | 114.5 (2) | O9—C25—O8 | 123.39 (19) |
C2—C11—H11A | 108.6 | O9—C25—C26 | 126.2 (2) |
C12—C11—H11A | 108.6 | O8—C25—C26 | 110.40 (19) |
C2—C11—H11B | 108.6 | C25—C26—H26A | 109.5 |
C12—C11—H11B | 108.6 | C25—C26—H26B | 109.5 |
H11A—C11—H11B | 107.6 | H26A—C26—H26B | 109.5 |
C11—C12—H12A | 109.5 | C25—C26—H26C | 109.5 |
C11—C12—H12B | 109.5 | H26A—C26—H26C | 109.5 |
H12A—C12—H12B | 109.5 | H26B—C26—H26C | 109.5 |
C11—C12—H12C | 109.5 | O12B—C19B—O5 | 121.7 (11) |
H12A—C12—H12C | 109.5 | O12B—C19B—C20B | 122.2 (15) |
H12B—C12—H12C | 109.5 | O5—C19B—C20B | 115.4 (14) |
O3—C13—O4 | 107.29 (15) | O12A—C19A—O5 | 122.6 (6) |
O3—C13—C17 | 106.83 (15) | O12A—C19A—C20A | 130.6 (9) |
O4—C13—C17 | 110.86 (14) | O5—C19A—C20A | 106.8 (7) |
O3—C13—H13 | 110.6 | C19A—C20A—H20A | 109.5 |
O4—C13—H13 | 110.6 | C19A—C20A—H20B | 109.5 |
C17—C13—H13 | 110.6 | H20A—C20A—H20B | 109.5 |
O4—C14—C18 | 109.20 (17) | C19A—C20A—H20C | 109.5 |
O4—C14—C15 | 105.71 (16) | H20A—C20A—H20C | 109.5 |
C18—C14—C15 | 114.39 (16) | H20B—C20A—H20C | 109.5 |
C9—N1—C1—O1 | 178.86 (18) | C13—O4—C14—C15 | 68.72 (19) |
C9—N1—C1—C2 | −2.5 (3) | C21—O6—C15—C16 | 113.7 (2) |
O1—C1—C2—C3 | 177.27 (19) | C21—O6—C15—C14 | −126.9 (2) |
N1—C1—C2—C3 | −1.3 (3) | O4—C14—C15—O6 | 178.44 (14) |
O1—C1—C2—C11 | −3.2 (3) | C18—C14—C15—O6 | 58.3 (2) |
N1—C1—C2—C11 | 178.23 (18) | O4—C14—C15—C16 | −63.19 (19) |
C1—C2—C3—O3 | −178.62 (16) | C18—C14—C15—C16 | 176.64 (18) |
C11—C2—C3—O3 | 1.9 (3) | C23—O7—C16—C15 | 124.02 (19) |
C1—C2—C3—C4 | 4.9 (3) | C23—O7—C16—C17 | −115.48 (18) |
C11—C2—C3—C4 | −174.59 (19) | O6—C15—C16—O7 | −67.3 (2) |
C13—O3—C3—C2 | 103.2 (2) | C14—C15—C16—O7 | 173.66 (15) |
C13—O3—C3—C4 | −80.1 (2) | O6—C15—C16—C17 | 173.00 (16) |
C2—C3—C4—C9 | −4.7 (3) | C14—C15—C16—C17 | 54.0 (2) |
O3—C3—C4—C9 | 178.79 (16) | C25—O8—C17—C13 | 147.94 (17) |
C2—C3—C4—C5 | 173.0 (2) | C25—O8—C17—C16 | −92.0 (2) |
O3—C3—C4—C5 | −3.5 (3) | O3—C13—C17—O8 | −74.60 (17) |
C9—C4—C5—C6 | 0.0 (3) | O4—C13—C17—O8 | 168.81 (14) |
C3—C4—C5—C6 | −177.7 (2) | O3—C13—C17—C16 | 166.26 (15) |
C4—C5—C6—C7 | −1.6 (3) | O4—C13—C17—C16 | 49.7 (2) |
C5—C6—C7—C8 | 2.0 (3) | O7—C16—C17—O8 | 79.57 (19) |
C10—O2—C8—C7 | 4.6 (3) | C15—C16—C17—O8 | −162.69 (16) |
C10—O2—C8—C9 | −175.86 (18) | O7—C16—C17—C13 | −164.32 (15) |
C6—C7—C8—O2 | 178.7 (2) | C15—C16—C17—C13 | −46.6 (2) |
C6—C7—C8—C9 | −0.8 (3) | C19B—O5—C18—C14 | 166.2 (9) |
C1—N1—C9—C4 | 2.8 (3) | C19A—O5—C18—C14 | −165.4 (4) |
C1—N1—C9—C8 | −175.50 (19) | O4—C14—C18—O5 | −67.2 (2) |
C5—C4—C9—N1 | −177.02 (18) | C15—C14—C18—O5 | 51.0 (2) |
C3—C4—C9—N1 | 0.8 (3) | C15—O6—C21—O11 | −1.4 (4) |
C5—C4—C9—C8 | 1.2 (3) | C15—O6—C21—C22 | −179.6 (2) |
C3—C4—C9—C8 | 179.01 (18) | C16—O7—C23—O10 | 4.7 (3) |
O2—C8—C9—N1 | −2.1 (3) | C16—O7—C23—C24 | −175.71 (17) |
C7—C8—C9—N1 | 177.45 (19) | C17—O8—C25—O9 | 3.1 (3) |
O2—C8—C9—C4 | 179.66 (18) | C17—O8—C25—C26 | −177.82 (17) |
C7—C8—C9—C4 | −0.8 (3) | C19A—O5—C19B—O12B | −102 (3) |
C3—C2—C11—C12 | −114.4 (2) | C18—O5—C19B—O12B | −12.3 (19) |
C1—C2—C11—C12 | 66.1 (3) | C19A—O5—C19B—C20B | 68 (2) |
C3—O3—C13—O4 | −73.23 (18) | C18—O5—C19B—C20B | 158.4 (14) |
C3—O3—C13—C17 | 167.84 (14) | C19B—O5—C19A—O12A | 112 (2) |
C14—O4—C13—O3 | −179.20 (15) | C18—O5—C19A—O12A | 8.2 (9) |
C14—O4—C13—C17 | −62.9 (2) | C19B—O5—C19A—C20A | −69 (2) |
C13—O4—C14—C18 | −167.76 (16) | C18—O5—C19A—C20A | −172.8 (8) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.88 | 1.98 | 2.831 (2) | 163 |
C13—H13···O9ii | 1.00 | 2.39 | 3.292 (3) | 149 |
Symmetry codes: (i) x+1/2, −y+1/2, −z+1; (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C26H31NO12 |
Mr | 549.52 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 150 |
a, b, c (Å) | 5.36993 (11), 19.2205 (6), 27.2479 (6) |
V (Å3) | 2812.33 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.40 × 0.40 × 0.30 |
Data collection | |
Diffractometer | Kuma KM-4 CCD diffractometer |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2006) |
Tmin, Tmax | 0.918, 0.967 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 32021, 3429, 2990 |
Rint | 0.020 |
(sin θ/λ)max (Å−1) | 0.645 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.080, 1.09 |
No. of reflections | 3429 |
No. of parameters | 387 |
No. of restraints | 81 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.13 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2006), CrysAlis RED (Oxford Diffraction, 2006), CrysAlis RED (Oxford Diffraction, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.88 | 1.98 | 2.831 (2) | 163.2 |
C13—H13···O9ii | 1.00 | 2.39 | 3.292 (3) | 149.1 |
Symmetry codes: (i) x+1/2, −y+1/2, −z+1; (ii) x+1, y, z. |
Acknowledgements
This study was supported by the Ministry of Education, Youth and Sports of the Czech Republic (project No. MSM7088352101 and joint project No. 9-06-3 of the KONTAKT Programme) and the Slovenian Research Agency (project No. P1-0230-0103 and joint project No. BI-CZ/07-08-018).
References
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
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The title compound represents one of the first selectively 4-O-glucosylated N-unsubstituted 4-hydroxyquinolin-2(1H)-ones with potential antimicrobial activity (Kimmel et al., 2010). Several previously prepared saccharide functionalized quinoline derivatives possess interesting bioactivities e.g. as antimalaric agents (Suzuki et al., 2007).
The structure of the title compound (Fig. 1) consists of an essentially planar quinoline ring with the maximum deviation from the best plane being of 0.055 (2)Å for C6 and an oxane ring in classical chair conformation with Cremer & Pople (1975) puckering parameters being Q = 0.586 (2) Å, θ= 11.5 (2) and φ= 309.4 (10)°. The torsion angles describing alignment of peracetylated glucose unit, ethyl in the C2 position and methoxy group in the C8 position C2—C3—O3—C13, C3—O3—C13—O4, C1—C2—C11—C12 and C9—C8—O2—C10 are 103.2 (2), -73.23 (18), 66.1 (3) and -175.86 (19)° respectively. The acetyl group on the O5 was refined using a two-part disorder model with occupancies being 0.634 (8):0.366 (8). The absolute configurations on C14—C17 correspond to those in starting material and inversion on C13 is in agreement with the well known mechanism of Koenigs-Knorr synthesis. The molecules are linked via N1—H1···O1 H-bonds (Fig. 2, Table 1) into chains parallel to the a-axis. The packing of the crystal is stabilized by further C—H···O weak interactions (Table 1).