organic compounds
14-Methoxy-4,6-dimethyl-9-phenyl-8,12-dioxa-4,6-diazatetracyclo[8.8.0.02,7.013,18]octadeca-2(7),13,15,17-tetraene-3,5,11-trione
aDepartment of Physics, Presidency College, Chennai 600 005, India, bCenter for Advanced Study in Botany, University of Madras, Guindy Campus, Chennai 600 025, India, and cDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: aravindhanpresidency@gmail.com
The title compound, C23H20N2O6, crystallizes with two molecules in the in which the dihedral angles between the mean planes of the pyran and phenyl rings are 66.6 (1) and 61.9 (1) °. The fused pyrone and pyran rings each adopts a sofa conformation. In the crystal, C—H⋯O hydrogen bonds link the molecules, forming a two-dimensional network parallel to [001].
Related literature
For the biological activity of pyranocoumarin compounds, see: Kawaii et al. (2001); Hossain et al. (1996); Goel et al. (1997); Su et al. (2009); Xu et al. (2006). For anti-filarial activity studies of pyranocoumarin compounds, see: Casley-Smith et al. (1993) and for enzyme inhibitory activity of pyranocoumarin compounds, see: Pavao et al. (2002). For a related structure, see: Jagadeesan et al. (2013).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
10.1107/S1600536813017789/bt6915sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813017789/bt6915Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813017789/bt6915Isup3.cml
A mixture of 2-ethoxy-6-formylphenyl (2E)-but-2-enoate (0.234 g, 1 mmol) and N,N-dimethylbarbituric acid (0.156 g, 1 mmol) was placed in a round bottom flask and melted at 180 °C for 1 h. After completion of the reaction as indicated by TLC, the crude product was washed with 5 ml of ethylacetate and hexane mixture (1:49 ratio) which successfully provided the pure product in 90% yield as colorless solid. Diffraction quality crystals were obtained by slow evaporation of a solution in (Methonal and ethanol)6:4 ratio.
H atoms (except H7A, H7B, H8A, H8B, H9A and H9B atom which were freely refined) were refined with fixed individual displacement parameters [U(H) = 1.2 Ueq(C)] using a riding model with C—H ranging from 0.93 Å to 0.97 Å. The methyl groups bonded to N were refined as disordered over two equally occupied sites rotated by 60 degrees.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. The molecular structure of the title compound. Displacement ellipsoids are drawn at the 30% probability level, H atoms have been omitted for clarity. | |
Fig. 2. Crystal packing of the title compound. Hydrogen bonds are shown as dashed lines. For the sake of clarity, H atoms not involved in the interactions have been omitted. |
C23H20N2O6 | Z = 4 |
Mr = 420.41 | F(000) = 880 |
Triclinic, P1 | Dx = 1.406 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.2283 (7) Å | Cell parameters from 8834 reflections |
b = 14.0584 (10) Å | θ = 2.1–31.2° |
c = 16.4457 (13) Å | µ = 0.10 mm−1 |
α = 94.869 (2)° | T = 293 K |
β = 102.547 (2)° | Block, colourless |
γ = 105.270 (2)° | 0.25 × 0.20 × 0.20 mm |
V = 1986.1 (3) Å3 |
Bruker Kappa APEXII CCD diffractometer | 7558 independent reflections |
Radiation source: fine-focus sealed tube | 5648 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω and ϕ scan | θmax = 25.7°, θmin = 1.3° |
Absorption correction: multi-scan (SADABS; Bruker 2004) | h = −11→11 |
Tmin = 0.979, Tmax = 0.983 | k = −17→17 |
36657 measured reflections | l = −20→20 |
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 atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.141 | w = 1/[σ2(Fo2) + (0.0528P)2 + 1.2155P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max = 0.001 |
7558 reflections | Δρmax = 0.22 e Å−3 |
588 parameters | Δρmin = −0.18 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0041 (7) |
C23H20N2O6 | γ = 105.270 (2)° |
Mr = 420.41 | V = 1986.1 (3) Å3 |
Triclinic, P1 | Z = 4 |
a = 9.2283 (7) Å | Mo Kα radiation |
b = 14.0584 (10) Å | µ = 0.10 mm−1 |
c = 16.4457 (13) Å | T = 293 K |
α = 94.869 (2)° | 0.25 × 0.20 × 0.20 mm |
β = 102.547 (2)° |
Bruker Kappa APEXII CCD diffractometer | 7558 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker 2004) | 5648 reflections with I > 2σ(I) |
Tmin = 0.979, Tmax = 0.983 | Rint = 0.029 |
36657 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.141 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.22 e Å−3 |
7558 reflections | Δρmin = −0.18 e Å−3 |
588 parameters |
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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O1A | 0.43958 (18) | 0.84184 (11) | 0.13771 (9) | 0.0433 (4) | |
O3A | 0.62793 (19) | 0.60615 (11) | 0.25301 (10) | 0.0491 (4) | |
N1A | 0.4243 (2) | 0.98731 (13) | 0.19611 (11) | 0.0408 (4) | |
O6A | 0.3970 (2) | 1.13287 (12) | 0.25056 (11) | 0.0653 (5) | |
O5A | 0.6491 (2) | 0.96419 (12) | 0.42706 (10) | 0.0587 (5) | |
O1B | 1.0081 (2) | 1.35732 (12) | 0.17540 (11) | 0.0542 (4) | |
O2B | 0.7090 (2) | 1.04069 (13) | 0.08928 (10) | 0.0558 (4) | |
O3B | 0.8419 (2) | 1.03414 (11) | 0.21441 (10) | 0.0500 (4) | |
O2A | 0.7740 (2) | 0.66004 (13) | 0.16873 (11) | 0.0553 (4) | |
C11A | 0.4727 (2) | 0.90470 (15) | 0.20928 (13) | 0.0354 (5) | |
N2A | 0.5173 (2) | 1.04671 (13) | 0.34024 (11) | 0.0447 (5) | |
C9A | 0.6168 (3) | 0.80548 (15) | 0.29473 (13) | 0.0370 (5) | |
C10A | 0.5470 (3) | 0.89086 (15) | 0.28534 (13) | 0.0371 (5) | |
C24A | 0.6857 (3) | 0.67602 (16) | 0.20697 (14) | 0.0417 (5) | |
C17A | 0.5294 (3) | 0.71943 (15) | 0.33133 (13) | 0.0381 (5) | |
O4A | 0.4761 (2) | 0.45275 (12) | 0.30578 (12) | 0.0642 (5) | |
N1B | 1.0045 (2) | 1.49711 (14) | 0.25095 (14) | 0.0557 (5) | |
O5B | 0.7679 (2) | 1.34929 (14) | 0.40134 (12) | 0.0643 (5) | |
C14A | 0.4427 (3) | 1.06042 (15) | 0.26200 (14) | 0.0439 (5) | |
C6A | 0.4536 (3) | 0.69790 (17) | 0.05832 (14) | 0.0436 (5) | |
C11B | 0.9629 (3) | 1.39480 (16) | 0.23985 (15) | 0.0453 (6) | |
N2B | 0.8912 (3) | 1.49558 (14) | 0.36477 (13) | 0.0540 (5) | |
C8B | 0.8289 (3) | 1.19799 (16) | 0.17843 (14) | 0.0407 (5) | |
C18A | 0.5376 (3) | 0.62478 (16) | 0.30704 (14) | 0.0400 (5) | |
C10B | 0.8851 (3) | 1.34072 (16) | 0.28866 (14) | 0.0424 (5) | |
C18B | 0.9296 (3) | 1.08267 (16) | 0.29447 (14) | 0.0424 (5) | |
O4B | 1.0043 (2) | 0.93660 (13) | 0.30200 (13) | 0.0700 (6) | |
C22A | 0.4416 (3) | 0.72982 (17) | 0.38821 (14) | 0.0470 (6) | |
H22A | 0.4321 | 0.7923 | 0.4049 | 0.056* | |
C13B | 0.8415 (3) | 1.39109 (17) | 0.35471 (16) | 0.0489 (6) | |
C8A | 0.6299 (3) | 0.76749 (16) | 0.20753 (14) | 0.0382 (5) | |
C24B | 0.7878 (3) | 1.08628 (16) | 0.15531 (14) | 0.0411 (5) | |
C9B | 0.8319 (3) | 1.22862 (15) | 0.26978 (14) | 0.0397 (5) | |
C7B | 0.9863 (3) | 1.25026 (17) | 0.16340 (15) | 0.0450 (5) | |
C19A | 0.4606 (3) | 0.54112 (16) | 0.33674 (15) | 0.0469 (6) | |
C17B | 0.9294 (3) | 1.17652 (16) | 0.32621 (14) | 0.0421 (5) | |
O6B | 1.0114 (2) | 1.64095 (13) | 0.32677 (14) | 0.0782 (6) | |
C13A | 0.5775 (3) | 0.96662 (16) | 0.35610 (14) | 0.0423 (5) | |
C7A | 0.4712 (3) | 0.74697 (16) | 0.14575 (14) | 0.0394 (5) | |
C14B | 0.9705 (3) | 1.55068 (17) | 0.31511 (18) | 0.0560 (7) | |
C6B | 1.0041 (3) | 1.22284 (18) | 0.07678 (15) | 0.0470 (6) | |
C21A | 0.3684 (3) | 0.64850 (19) | 0.42018 (16) | 0.0552 (6) | |
H21A | 0.3124 | 0.6570 | 0.4595 | 0.066* | |
C15A | 0.3540 (3) | 1.00239 (18) | 0.11075 (14) | 0.0508 (6) | |
H15A | 0.2965 | 1.0497 | 0.1143 | 0.076* | 0.50 |
H15B | 0.2856 | 0.9401 | 0.0795 | 0.076* | 0.50 |
H15C | 0.4342 | 1.0272 | 0.0827 | 0.076* | 0.50 |
H15D | 0.3810 | 0.9616 | 0.0700 | 0.076* | 0.50 |
H15E | 0.3919 | 1.0713 | 0.1049 | 0.076* | 0.50 |
H15F | 0.2433 | 0.9841 | 0.1017 | 0.076* | 0.50 |
C2B | 1.0921 (3) | 1.1218 (2) | −0.01454 (18) | 0.0654 (7) | |
H2B | 1.1418 | 1.0733 | −0.0220 | 0.079* | |
C16A | 0.5385 (4) | 1.12317 (18) | 0.41195 (16) | 0.0638 (8) | |
H16A | 0.5481 | 1.0942 | 0.4629 | 0.096* | 0.50 |
H16B | 0.4505 | 1.1488 | 0.4037 | 0.096* | 0.50 |
H16C | 0.6307 | 1.1765 | 0.4160 | 0.096* | 0.50 |
H16D | 0.5381 | 1.1855 | 0.3922 | 0.096* | 0.50 |
H16E | 0.6357 | 1.1309 | 0.4514 | 0.096* | 0.50 |
H16F | 0.4555 | 1.1031 | 0.4391 | 0.096* | 0.50 |
C1A | 0.3713 (3) | 0.59853 (19) | 0.03436 (17) | 0.0594 (7) | |
H1A | 0.3277 | 0.5627 | 0.0725 | 0.071* | |
C5B | 0.9430 (4) | 1.2624 (2) | 0.00862 (18) | 0.0640 (7) | |
H5B | 0.8912 | 1.3098 | 0.0157 | 0.077* | |
C20A | 0.3767 (3) | 0.55408 (18) | 0.39469 (16) | 0.0547 (6) | |
H20A | 0.3261 | 0.4996 | 0.4165 | 0.066* | |
C20B | 1.1029 (4) | 1.0712 (2) | 0.42048 (17) | 0.0660 (8) | |
H20B | 1.1602 | 1.0364 | 0.4531 | 0.079* | |
C19B | 1.0153 (3) | 1.02850 (18) | 0.34063 (16) | 0.0510 (6) | |
C16B | 0.8547 (4) | 1.5509 (2) | 0.43332 (19) | 0.0728 (9) | |
H16G | 0.8232 | 1.5067 | 0.4718 | 0.109* | 0.50 |
H16H | 0.7721 | 1.5781 | 0.4105 | 0.109* | 0.50 |
H16I | 0.9450 | 1.6041 | 0.4626 | 0.109* | 0.50 |
H16J | 0.8703 | 1.6192 | 0.4248 | 0.109* | 0.50 |
H16K | 0.9214 | 1.5478 | 0.4861 | 0.109* | 0.50 |
H16L | 0.7486 | 1.5218 | 0.4340 | 0.109* | 0.50 |
C22B | 1.0194 (4) | 1.2177 (2) | 0.40600 (16) | 0.0621 (7) | |
H22B | 1.0219 | 1.2812 | 0.4288 | 0.075* | |
C23A | 0.3997 (4) | 0.36508 (19) | 0.3349 (2) | 0.0740 (9) | |
H23A | 0.4203 | 0.3082 | 0.3084 | 0.111* | |
H23B | 0.2900 | 0.3563 | 0.3209 | 0.111* | |
H23C | 0.4374 | 0.3717 | 0.3949 | 0.111* | |
C4A | 0.4996 (4) | 0.7023 (3) | −0.07899 (17) | 0.0719 (8) | |
H4A | 0.5437 | 0.7374 | −0.1173 | 0.086* | |
C3A | 0.4174 (4) | 0.6034 (3) | −0.10228 (19) | 0.0758 (10) | |
H3A | 0.4055 | 0.5715 | −0.1563 | 0.091* | |
C2A | 0.3535 (4) | 0.5522 (2) | −0.0460 (2) | 0.0766 (9) | |
H2A | 0.2973 | 0.4853 | −0.0619 | 0.092* | |
C5A | 0.5171 (3) | 0.7500 (2) | 0.00085 (16) | 0.0579 (7) | |
H5A | 0.5717 | 0.8173 | 0.0160 | 0.069* | |
C1B | 1.0790 (3) | 1.1524 (2) | 0.06444 (17) | 0.0595 (7) | |
H1B | 1.1214 | 1.1251 | 0.1101 | 0.071* | |
C3B | 1.0330 (3) | 1.1619 (2) | −0.08186 (19) | 0.0670 (8) | |
H3B | 1.0434 | 1.1417 | −0.1351 | 0.080* | |
C23B | 1.0990 (4) | 0.8826 (2) | 0.3457 (2) | 0.0904 (11) | |
H23D | 1.0807 | 0.8192 | 0.3123 | 0.136* | |
H23E | 1.0739 | 0.8723 | 0.3986 | 0.136* | |
H23F | 1.2062 | 0.9198 | 0.3557 | 0.136* | |
C15B | 1.0871 (4) | 1.5530 (2) | 0.1958 (2) | 0.0786 (9) | |
H15G | 1.1215 | 1.6227 | 0.2182 | 0.118* | 0.50 |
H15H | 1.0190 | 1.5428 | 0.1406 | 0.118* | 0.50 |
H15I | 1.1752 | 1.5301 | 0.1922 | 0.118* | 0.50 |
H15J | 1.0889 | 1.5077 | 0.1491 | 0.118* | 0.50 |
H15K | 1.1915 | 1.5876 | 0.2268 | 0.118* | 0.50 |
H15L | 1.0353 | 1.6003 | 0.1752 | 0.118* | 0.50 |
C21B | 1.1056 (4) | 1.1655 (2) | 0.45203 (18) | 0.0757 (9) | |
H21B | 1.1670 | 1.1946 | 0.5056 | 0.091* | |
C4B | 0.9580 (4) | 1.2323 (2) | −0.07059 (19) | 0.0745 (9) | |
H4B | 0.9169 | 1.2599 | −0.1164 | 0.089* | |
H8A | 0.703 (3) | 0.8181 (16) | 0.1882 (13) | 0.040 (6)* | |
H9A | 0.723 (3) | 0.8307 (15) | 0.3302 (13) | 0.036 (6)* | |
H7A | 0.393 (3) | 0.7075 (17) | 0.1685 (14) | 0.041 (6)* | |
H7B | 1.071 (3) | 1.2327 (17) | 0.2088 (15) | 0.050 (6)* | |
H9B | 0.724 (3) | 1.2058 (16) | 0.2746 (14) | 0.043 (6)* | |
H8B | 0.750 (3) | 1.2190 (17) | 0.1387 (15) | 0.048 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1A | 0.0583 (10) | 0.0410 (8) | 0.0318 (8) | 0.0254 (7) | 0.0018 (7) | 0.0004 (6) |
O3A | 0.0613 (10) | 0.0405 (8) | 0.0584 (10) | 0.0253 (7) | 0.0263 (9) | 0.0144 (7) |
N1A | 0.0528 (11) | 0.0378 (9) | 0.0348 (10) | 0.0206 (8) | 0.0080 (8) | 0.0063 (7) |
O6A | 0.1003 (15) | 0.0422 (9) | 0.0583 (11) | 0.0361 (10) | 0.0117 (10) | 0.0054 (8) |
O5A | 0.0825 (13) | 0.0518 (10) | 0.0337 (9) | 0.0201 (9) | −0.0012 (9) | 0.0015 (7) |
O1B | 0.0591 (11) | 0.0416 (9) | 0.0684 (12) | 0.0125 (8) | 0.0287 (9) | 0.0163 (8) |
O2B | 0.0619 (11) | 0.0555 (10) | 0.0412 (10) | 0.0129 (8) | 0.0046 (8) | −0.0052 (8) |
O3B | 0.0636 (11) | 0.0352 (8) | 0.0442 (9) | 0.0123 (7) | 0.0018 (8) | 0.0038 (7) |
O2A | 0.0584 (11) | 0.0557 (10) | 0.0633 (11) | 0.0266 (8) | 0.0267 (9) | 0.0097 (8) |
C11A | 0.0394 (12) | 0.0331 (10) | 0.0338 (11) | 0.0117 (9) | 0.0084 (9) | 0.0037 (8) |
N2A | 0.0644 (13) | 0.0330 (9) | 0.0360 (10) | 0.0129 (8) | 0.0140 (9) | 0.0017 (7) |
C9A | 0.0395 (12) | 0.0371 (11) | 0.0322 (11) | 0.0126 (9) | 0.0029 (10) | 0.0042 (9) |
C10A | 0.0457 (12) | 0.0328 (10) | 0.0334 (11) | 0.0119 (9) | 0.0099 (9) | 0.0057 (8) |
C24A | 0.0420 (13) | 0.0429 (12) | 0.0419 (13) | 0.0159 (10) | 0.0097 (11) | 0.0057 (10) |
C17A | 0.0434 (12) | 0.0392 (11) | 0.0307 (11) | 0.0135 (9) | 0.0041 (9) | 0.0073 (9) |
O4A | 0.0877 (14) | 0.0372 (9) | 0.0766 (13) | 0.0218 (9) | 0.0317 (11) | 0.0158 (8) |
N1B | 0.0546 (13) | 0.0355 (10) | 0.0732 (15) | 0.0094 (9) | 0.0105 (11) | 0.0137 (10) |
O5B | 0.0829 (14) | 0.0570 (11) | 0.0583 (11) | 0.0210 (10) | 0.0300 (10) | 0.0032 (9) |
C14A | 0.0569 (14) | 0.0314 (11) | 0.0438 (13) | 0.0122 (10) | 0.0143 (11) | 0.0051 (9) |
C6A | 0.0476 (13) | 0.0443 (12) | 0.0392 (12) | 0.0220 (10) | 0.0029 (10) | 0.0004 (10) |
C11B | 0.0420 (13) | 0.0385 (12) | 0.0542 (15) | 0.0133 (10) | 0.0068 (11) | 0.0076 (10) |
N2B | 0.0594 (13) | 0.0400 (11) | 0.0569 (13) | 0.0198 (9) | 0.0004 (10) | −0.0034 (9) |
C8B | 0.0435 (13) | 0.0410 (12) | 0.0391 (12) | 0.0142 (10) | 0.0096 (10) | 0.0096 (9) |
C18A | 0.0443 (13) | 0.0411 (12) | 0.0382 (12) | 0.0178 (10) | 0.0098 (10) | 0.0093 (9) |
C10B | 0.0440 (13) | 0.0357 (11) | 0.0459 (13) | 0.0124 (9) | 0.0069 (10) | 0.0058 (9) |
C18B | 0.0495 (13) | 0.0365 (11) | 0.0389 (12) | 0.0098 (9) | 0.0088 (10) | 0.0072 (9) |
O4B | 0.0868 (14) | 0.0456 (10) | 0.0782 (13) | 0.0314 (9) | 0.0049 (11) | 0.0136 (9) |
C22A | 0.0609 (15) | 0.0447 (13) | 0.0382 (13) | 0.0185 (11) | 0.0145 (11) | 0.0062 (10) |
C13B | 0.0514 (14) | 0.0429 (13) | 0.0497 (14) | 0.0180 (11) | 0.0035 (12) | 0.0009 (11) |
C8A | 0.0405 (12) | 0.0379 (11) | 0.0390 (12) | 0.0141 (9) | 0.0111 (10) | 0.0084 (9) |
C24B | 0.0439 (13) | 0.0417 (12) | 0.0384 (13) | 0.0116 (10) | 0.0130 (10) | 0.0057 (10) |
C9B | 0.0442 (13) | 0.0353 (11) | 0.0386 (12) | 0.0100 (9) | 0.0100 (10) | 0.0060 (9) |
C7B | 0.0470 (14) | 0.0441 (12) | 0.0483 (14) | 0.0171 (10) | 0.0141 (11) | 0.0124 (10) |
C19A | 0.0538 (14) | 0.0383 (12) | 0.0488 (14) | 0.0147 (10) | 0.0099 (11) | 0.0108 (10) |
C17B | 0.0497 (13) | 0.0393 (12) | 0.0372 (12) | 0.0117 (10) | 0.0110 (10) | 0.0084 (9) |
O6B | 0.0784 (14) | 0.0347 (10) | 0.1059 (17) | 0.0141 (9) | −0.0036 (12) | 0.0029 (10) |
C13A | 0.0521 (14) | 0.0356 (11) | 0.0369 (12) | 0.0085 (9) | 0.0108 (10) | 0.0068 (9) |
C7A | 0.0459 (13) | 0.0361 (11) | 0.0363 (12) | 0.0151 (10) | 0.0074 (10) | 0.0036 (9) |
C14B | 0.0517 (15) | 0.0361 (13) | 0.0696 (18) | 0.0162 (11) | −0.0089 (13) | 0.0015 (12) |
C6B | 0.0453 (13) | 0.0522 (13) | 0.0522 (14) | 0.0183 (11) | 0.0202 (11) | 0.0200 (11) |
C21A | 0.0680 (17) | 0.0575 (15) | 0.0455 (14) | 0.0183 (13) | 0.0237 (13) | 0.0110 (11) |
C15A | 0.0648 (16) | 0.0473 (13) | 0.0412 (13) | 0.0262 (12) | 0.0018 (11) | 0.0093 (10) |
C2B | 0.0679 (19) | 0.080 (2) | 0.0646 (18) | 0.0361 (15) | 0.0311 (15) | 0.0143 (15) |
C16A | 0.105 (2) | 0.0425 (14) | 0.0419 (14) | 0.0209 (14) | 0.0193 (14) | −0.0039 (11) |
C1A | 0.0709 (18) | 0.0472 (14) | 0.0573 (16) | 0.0205 (12) | 0.0111 (14) | −0.0049 (12) |
C5B | 0.0758 (19) | 0.0689 (18) | 0.0648 (18) | 0.0357 (15) | 0.0288 (15) | 0.0288 (14) |
C20A | 0.0630 (16) | 0.0463 (14) | 0.0544 (15) | 0.0099 (11) | 0.0176 (13) | 0.0168 (11) |
C20B | 0.077 (2) | 0.0672 (18) | 0.0556 (17) | 0.0316 (15) | 0.0022 (14) | 0.0217 (14) |
C19B | 0.0570 (15) | 0.0427 (13) | 0.0544 (15) | 0.0164 (11) | 0.0106 (12) | 0.0150 (11) |
C16B | 0.089 (2) | 0.0595 (17) | 0.0654 (18) | 0.0384 (16) | −0.0015 (16) | −0.0133 (14) |
C22B | 0.087 (2) | 0.0553 (15) | 0.0397 (14) | 0.0265 (14) | 0.0031 (13) | −0.0002 (11) |
C23A | 0.084 (2) | 0.0372 (14) | 0.098 (2) | 0.0115 (13) | 0.0205 (18) | 0.0200 (14) |
C4A | 0.094 (2) | 0.090 (2) | 0.0437 (16) | 0.0452 (19) | 0.0195 (15) | 0.0082 (15) |
C3A | 0.098 (2) | 0.090 (2) | 0.0429 (16) | 0.055 (2) | 0.0001 (16) | −0.0169 (16) |
C2A | 0.090 (2) | 0.0618 (18) | 0.068 (2) | 0.0281 (16) | 0.0031 (18) | −0.0222 (16) |
C5A | 0.0720 (18) | 0.0593 (15) | 0.0439 (15) | 0.0230 (13) | 0.0154 (13) | 0.0014 (12) |
C1B | 0.0658 (17) | 0.0744 (18) | 0.0565 (16) | 0.0391 (14) | 0.0254 (14) | 0.0213 (13) |
C3B | 0.0686 (19) | 0.082 (2) | 0.0587 (18) | 0.0176 (15) | 0.0343 (15) | 0.0174 (15) |
C23B | 0.096 (3) | 0.0618 (19) | 0.123 (3) | 0.0421 (18) | 0.015 (2) | 0.0345 (19) |
C15B | 0.085 (2) | 0.0473 (16) | 0.101 (2) | 0.0049 (14) | 0.0274 (19) | 0.0289 (16) |
C21B | 0.098 (2) | 0.076 (2) | 0.0435 (15) | 0.0330 (17) | −0.0105 (15) | 0.0042 (14) |
C4B | 0.091 (2) | 0.084 (2) | 0.0600 (19) | 0.0308 (18) | 0.0271 (17) | 0.0381 (16) |
O1A—C11A | 1.336 (2) | O6B—C14B | 1.210 (3) |
O1A—C7A | 1.449 (2) | C7A—H7A | 0.95 (2) |
O3A—C24A | 1.359 (3) | C6B—C5B | 1.371 (3) |
O3A—C18A | 1.397 (3) | C6B—C1B | 1.374 (3) |
N1A—C11A | 1.367 (3) | C21A—C20A | 1.385 (4) |
N1A—C14A | 1.378 (3) | C21A—H21A | 0.9300 |
N1A—C15A | 1.471 (3) | C15A—H15A | 0.9600 |
O6A—C14A | 1.214 (3) | C15A—H15B | 0.9600 |
O5A—C13A | 1.218 (3) | C15A—H15C | 0.9600 |
O1B—C11B | 1.337 (3) | C15A—H15D | 0.9600 |
O1B—C7B | 1.455 (3) | C15A—H15E | 0.9600 |
O2B—C24B | 1.188 (3) | C15A—H15F | 0.9600 |
O3B—C24B | 1.354 (3) | C2B—C3B | 1.359 (4) |
O3B—C18B | 1.396 (3) | C2B—C1B | 1.374 (4) |
O2A—C24A | 1.186 (3) | C2B—H2B | 0.9300 |
C11A—C10A | 1.346 (3) | C16A—H16A | 0.9600 |
N2A—C14A | 1.376 (3) | C16A—H16B | 0.9600 |
N2A—C13A | 1.401 (3) | C16A—H16C | 0.9600 |
N2A—C16A | 1.469 (3) | C16A—H16D | 0.9600 |
C9A—C10A | 1.508 (3) | C16A—H16E | 0.9600 |
C9A—C17A | 1.515 (3) | C16A—H16F | 0.9600 |
C9A—C8A | 1.529 (3) | C1A—C2A | 1.379 (4) |
C9A—H9A | 0.98 (2) | C1A—H1A | 0.9300 |
C10A—C13A | 1.434 (3) | C5B—C4B | 1.382 (4) |
C24A—C8A | 1.506 (3) | C5B—H5B | 0.9300 |
C17A—C18A | 1.383 (3) | C20A—H20A | 0.9300 |
C17A—C22A | 1.386 (3) | C20B—C21B | 1.374 (4) |
O4A—C19A | 1.357 (3) | C20B—C19B | 1.374 (4) |
O4A—C23A | 1.426 (3) | C20B—H20B | 0.9300 |
N1B—C11B | 1.372 (3) | C16B—H16G | 0.9600 |
N1B—C14B | 1.383 (3) | C16B—H16H | 0.9600 |
N1B—C15B | 1.459 (4) | C16B—H16I | 0.9600 |
O5B—C13B | 1.219 (3) | C16B—H16J | 0.9600 |
C6A—C1A | 1.379 (3) | C16B—H16K | 0.9600 |
C6A—C5A | 1.380 (4) | C16B—H16L | 0.9600 |
C6A—C7A | 1.497 (3) | C22B—C21B | 1.372 (4) |
C11B—C10B | 1.343 (3) | C22B—H22B | 0.9300 |
N2B—C14B | 1.368 (4) | C23A—H23A | 0.9600 |
N2B—C13B | 1.402 (3) | C23A—H23B | 0.9600 |
N2B—C16B | 1.463 (3) | C23A—H23C | 0.9600 |
C8B—C24B | 1.509 (3) | C4A—C3A | 1.373 (5) |
C8B—C9B | 1.519 (3) | C4A—C5A | 1.379 (4) |
C8B—C7B | 1.528 (3) | C4A—H4A | 0.9300 |
C8B—H8B | 0.99 (2) | C3A—C2A | 1.359 (5) |
C18A—C19A | 1.391 (3) | C3A—H3A | 0.9300 |
C10B—C13B | 1.432 (3) | C2A—H2A | 0.9300 |
C10B—C9B | 1.505 (3) | C5A—H5A | 0.9300 |
C18B—C17B | 1.378 (3) | C1B—H1B | 0.9300 |
C18B—C19B | 1.392 (3) | C3B—C4B | 1.371 (4) |
O4B—C19B | 1.359 (3) | C3B—H3B | 0.9300 |
O4B—C23B | 1.424 (3) | C23B—H23D | 0.9600 |
C22A—C21A | 1.374 (3) | C23B—H23E | 0.9600 |
C22A—H22A | 0.9300 | C23B—H23F | 0.9600 |
C8A—C7A | 1.531 (3) | C15B—H15G | 0.9600 |
C8A—H8A | 0.97 (2) | C15B—H15H | 0.9600 |
C9B—C17B | 1.519 (3) | C15B—H15I | 0.9600 |
C9B—H9B | 0.99 (2) | C15B—H15J | 0.9600 |
C7B—C6B | 1.499 (3) | C15B—H15K | 0.9600 |
C7B—H7B | 1.06 (2) | C15B—H15L | 0.9600 |
C19A—C20A | 1.380 (4) | C21B—H21B | 0.9300 |
C17B—C22B | 1.375 (3) | C4B—H4B | 0.9300 |
C11A—O1A—C7A | 116.19 (16) | N1A—C15A—H15F | 109.5 |
C24A—O3A—C18A | 121.01 (17) | H15A—C15A—H15F | 56.3 |
C11A—N1A—C14A | 121.25 (18) | H15B—C15A—H15F | 56.3 |
C11A—N1A—C15A | 121.10 (18) | H15C—C15A—H15F | 141.1 |
C14A—N1A—C15A | 117.64 (18) | H15D—C15A—H15F | 109.5 |
C11B—O1B—C7B | 116.98 (17) | H15E—C15A—H15F | 109.5 |
C24B—O3B—C18B | 120.60 (17) | C3B—C2B—C1B | 120.5 (3) |
O1A—C11A—C10A | 125.08 (19) | C3B—C2B—H2B | 119.8 |
O1A—C11A—N1A | 111.66 (17) | C1B—C2B—H2B | 119.8 |
C10A—C11A—N1A | 123.25 (19) | N2A—C16A—H16A | 109.5 |
C14A—N2A—C13A | 124.81 (18) | N2A—C16A—H16B | 109.5 |
C14A—N2A—C16A | 117.42 (19) | H16A—C16A—H16B | 109.5 |
C13A—N2A—C16A | 117.8 (2) | N2A—C16A—H16C | 109.5 |
C10A—C9A—C17A | 115.84 (19) | H16A—C16A—H16C | 109.5 |
C10A—C9A—C8A | 107.27 (16) | H16B—C16A—H16C | 109.5 |
C17A—C9A—C8A | 109.59 (17) | N2A—C16A—H16D | 109.5 |
C10A—C9A—H9A | 109.1 (12) | H16A—C16A—H16D | 141.1 |
C17A—C9A—H9A | 108.2 (12) | H16B—C16A—H16D | 56.3 |
C8A—C9A—H9A | 106.4 (13) | H16C—C16A—H16D | 56.3 |
C11A—C10A—C13A | 118.46 (19) | N2A—C16A—H16E | 109.5 |
C11A—C10A—C9A | 121.14 (19) | H16A—C16A—H16E | 56.3 |
C13A—C10A—C9A | 119.85 (19) | H16B—C16A—H16E | 141.1 |
O2A—C24A—O3A | 117.9 (2) | H16C—C16A—H16E | 56.3 |
O2A—C24A—C8A | 125.0 (2) | H16D—C16A—H16E | 109.5 |
O3A—C24A—C8A | 117.06 (19) | N2A—C16A—H16F | 109.5 |
C18A—C17A—C22A | 117.7 (2) | H16A—C16A—H16F | 56.3 |
C18A—C17A—C9A | 118.41 (19) | H16B—C16A—H16F | 56.3 |
C22A—C17A—C9A | 123.88 (19) | H16C—C16A—H16F | 141.1 |
C19A—O4A—C23A | 117.9 (2) | H16D—C16A—H16F | 109.5 |
C11B—N1B—C14B | 121.2 (2) | H16E—C16A—H16F | 109.5 |
C11B—N1B—C15B | 121.0 (2) | C6A—C1A—C2A | 120.1 (3) |
C14B—N1B—C15B | 117.8 (2) | C6A—C1A—H1A | 120.0 |
O6A—C14A—N2A | 122.7 (2) | C2A—C1A—H1A | 120.0 |
O6A—C14A—N1A | 121.3 (2) | C6B—C5B—C4B | 120.4 (3) |
N2A—C14A—N1A | 116.01 (19) | C6B—C5B—H5B | 119.8 |
C1A—C6A—C5A | 119.2 (2) | C4B—C5B—H5B | 119.8 |
C1A—C6A—C7A | 119.3 (2) | C19A—C20A—C21A | 119.7 (2) |
C5A—C6A—C7A | 121.5 (2) | C19A—C20A—H20A | 120.1 |
O1B—C11B—C10B | 125.2 (2) | C21A—C20A—H20A | 120.1 |
O1B—C11B—N1B | 112.0 (2) | C21B—C20B—C19B | 119.8 (2) |
C10B—C11B—N1B | 122.8 (2) | C21B—C20B—H20B | 120.1 |
C14B—N2B—C13B | 125.3 (2) | C19B—C20B—H20B | 120.1 |
C14B—N2B—C16B | 116.9 (2) | O4B—C19B—C20B | 125.5 (2) |
C13B—N2B—C16B | 117.9 (2) | O4B—C19B—C18B | 116.3 (2) |
C24B—C8B—C9B | 112.13 (18) | C20B—C19B—C18B | 118.2 (2) |
C24B—C8B—C7B | 111.53 (19) | N2B—C16B—H16G | 109.5 |
C9B—C8B—C7B | 108.64 (19) | N2B—C16B—H16H | 109.5 |
C24B—C8B—H8B | 105.6 (14) | H16G—C16B—H16H | 109.5 |
C9B—C8B—H8B | 112.2 (14) | N2B—C16B—H16I | 109.5 |
C7B—C8B—H8B | 106.6 (14) | H16G—C16B—H16I | 109.5 |
C17A—C18A—C19A | 122.6 (2) | H16H—C16B—H16I | 109.5 |
C17A—C18A—O3A | 122.64 (19) | N2B—C16B—H16J | 109.5 |
C19A—C18A—O3A | 114.73 (19) | H16G—C16B—H16J | 141.1 |
C11B—C10B—C13B | 119.1 (2) | H16H—C16B—H16J | 56.3 |
C11B—C10B—C9B | 120.6 (2) | H16I—C16B—H16J | 56.3 |
C13B—C10B—C9B | 120.0 (2) | N2B—C16B—H16K | 109.5 |
C17B—C18B—C19B | 122.3 (2) | H16G—C16B—H16K | 56.3 |
C17B—C18B—O3B | 122.6 (2) | H16H—C16B—H16K | 141.1 |
C19B—C18B—O3B | 115.0 (2) | H16I—C16B—H16K | 56.3 |
C19B—O4B—C23B | 117.3 (2) | H16J—C16B—H16K | 109.5 |
C21A—C22A—C17A | 120.5 (2) | N2B—C16B—H16L | 109.5 |
C21A—C22A—H22A | 119.7 | H16G—C16B—H16L | 56.3 |
C17A—C22A—H22A | 119.7 | H16H—C16B—H16L | 56.3 |
O5B—C13B—N2B | 119.9 (2) | H16I—C16B—H16L | 141.1 |
O5B—C13B—C10B | 124.5 (2) | H16J—C16B—H16L | 109.5 |
N2B—C13B—C10B | 115.6 (2) | H16K—C16B—H16L | 109.5 |
C24A—C8A—C9A | 112.47 (18) | C21B—C22B—C17B | 120.2 (3) |
C24A—C8A—C7A | 111.13 (18) | C21B—C22B—H22B | 119.9 |
C9A—C8A—C7A | 108.06 (18) | C17B—C22B—H22B | 119.9 |
C24A—C8A—H8A | 107.2 (13) | O4A—C23A—H23A | 109.5 |
C9A—C8A—H8A | 110.6 (13) | O4A—C23A—H23B | 109.5 |
C7A—C8A—H8A | 107.3 (13) | H23A—C23A—H23B | 109.5 |
O2B—C24B—O3B | 117.7 (2) | O4A—C23A—H23C | 109.5 |
O2B—C24B—C8B | 124.5 (2) | H23A—C23A—H23C | 109.5 |
O3B—C24B—C8B | 117.79 (19) | H23B—C23A—H23C | 109.5 |
C10B—C9B—C8B | 108.28 (18) | C3A—C4A—C5A | 120.4 (3) |
C10B—C9B—C17B | 115.05 (19) | C3A—C4A—H4A | 119.8 |
C8B—C9B—C17B | 109.41 (18) | C5A—C4A—H4A | 119.8 |
C10B—C9B—H9B | 108.0 (13) | C2A—C3A—C4A | 119.7 (3) |
C8B—C9B—H9B | 106.7 (13) | C2A—C3A—H3A | 120.2 |
C17B—C9B—H9B | 109.1 (13) | C4A—C3A—H3A | 120.2 |
O1B—C7B—C6B | 106.77 (18) | C3A—C2A—C1A | 120.7 (3) |
O1B—C7B—C8B | 108.42 (18) | C3A—C2A—H2A | 119.7 |
C6B—C7B—C8B | 114.8 (2) | C1A—C2A—H2A | 119.7 |
O1B—C7B—H7B | 109.9 (13) | C6A—C5A—C4A | 120.0 (3) |
C6B—C7B—H7B | 109.9 (13) | C6A—C5A—H5A | 120.0 |
C8B—C7B—H7B | 107.0 (13) | C4A—C5A—H5A | 120.0 |
O4A—C19A—C20A | 125.6 (2) | C2B—C1B—C6B | 120.8 (3) |
O4A—C19A—C18A | 116.1 (2) | C2B—C1B—H1B | 119.6 |
C20A—C19A—C18A | 118.4 (2) | C6B—C1B—H1B | 119.6 |
C22B—C17B—C18B | 118.1 (2) | C2B—C3B—C4B | 119.4 (3) |
C22B—C17B—C9B | 124.3 (2) | C2B—C3B—H3B | 120.3 |
C18B—C17B—C9B | 117.61 (19) | C4B—C3B—H3B | 120.3 |
O5A—C13A—N2A | 119.7 (2) | O4B—C23B—H23D | 109.5 |
O5A—C13A—C10A | 124.3 (2) | O4B—C23B—H23E | 109.5 |
N2A—C13A—C10A | 116.00 (19) | H23D—C23B—H23E | 109.5 |
O1A—C7A—C6A | 106.58 (17) | O4B—C23B—H23F | 109.5 |
O1A—C7A—C8A | 107.71 (17) | H23D—C23B—H23F | 109.5 |
C6A—C7A—C8A | 116.74 (19) | H23E—C23B—H23F | 109.5 |
O1A—C7A—H7A | 107.5 (14) | N1B—C15B—H15G | 109.5 |
C6A—C7A—H7A | 108.4 (13) | N1B—C15B—H15H | 109.5 |
C8A—C7A—H7A | 109.5 (14) | H15G—C15B—H15H | 109.5 |
O6B—C14B—N2B | 122.6 (3) | N1B—C15B—H15I | 109.5 |
O6B—C14B—N1B | 121.3 (3) | H15G—C15B—H15I | 109.5 |
N2B—C14B—N1B | 116.0 (2) | H15H—C15B—H15I | 109.5 |
C5B—C6B—C1B | 118.6 (2) | N1B—C15B—H15J | 109.5 |
C5B—C6B—C7B | 122.5 (2) | H15G—C15B—H15J | 141.1 |
C1B—C6B—C7B | 118.8 (2) | H15H—C15B—H15J | 56.3 |
C22A—C21A—C20A | 121.0 (2) | H15I—C15B—H15J | 56.3 |
C22A—C21A—H21A | 119.5 | N1B—C15B—H15K | 109.5 |
C20A—C21A—H21A | 119.5 | H15G—C15B—H15K | 56.3 |
N1A—C15A—H15A | 109.5 | H15H—C15B—H15K | 141.1 |
N1A—C15A—H15B | 109.5 | H15I—C15B—H15K | 56.3 |
H15A—C15A—H15B | 109.5 | H15J—C15B—H15K | 109.5 |
N1A—C15A—H15C | 109.5 | N1B—C15B—H15L | 109.5 |
H15A—C15A—H15C | 109.5 | H15G—C15B—H15L | 56.3 |
H15B—C15A—H15C | 109.5 | H15H—C15B—H15L | 56.3 |
N1A—C15A—H15D | 109.5 | H15I—C15B—H15L | 141.1 |
H15A—C15A—H15D | 141.1 | H15J—C15B—H15L | 109.5 |
H15B—C15A—H15D | 56.3 | H15K—C15B—H15L | 109.5 |
H15C—C15A—H15D | 56.3 | C22B—C21B—C20B | 121.3 (3) |
N1A—C15A—H15E | 109.5 | C22B—C21B—H21B | 119.3 |
H15A—C15A—H15E | 56.3 | C20B—C21B—H21B | 119.3 |
H15B—C15A—H15E | 141.1 | C3B—C4B—C5B | 120.2 (3) |
H15C—C15A—H15E | 56.3 | C3B—C4B—H4B | 119.9 |
H15D—C15A—H15E | 109.5 | C5B—C4B—H4B | 119.9 |
D—H···A | D—H | H···A | D···A | D—H···A |
C21A—H21A···O5Bi | 0.93 | 2.55 | 3.435 (4) | 159 |
C20B—H20B···O5Aii | 0.93 | 2.34 | 3.175 (3) | 149 |
C23B—H23D···O6Biii | 0.96 | 2.46 | 3.249 (4) | 139 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+2, −y+2, −z+1; (iii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C23H20N2O6 |
Mr | 420.41 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 9.2283 (7), 14.0584 (10), 16.4457 (13) |
α, β, γ (°) | 94.869 (2), 102.547 (2), 105.270 (2) |
V (Å3) | 1986.1 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.25 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker 2004) |
Tmin, Tmax | 0.979, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 36657, 7558, 5648 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.611 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.047, 0.141, 1.06 |
No. of reflections | 7558 |
No. of parameters | 588 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.18 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C21A—H21A···O5Bi | 0.93 | 2.55 | 3.435 (4) | 158.5 |
C20B—H20B···O5Aii | 0.93 | 2.34 | 3.175 (3) | 149.2 |
C23B—H23D···O6Biii | 0.96 | 2.46 | 3.249 (4) | 138.9 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+2, −y+2, −z+1; (iii) x, y−1, z. |
Acknowledgements
SA thanks the UGC, India, for financial support
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Coumarin derivatives show strong activity against cancer cell lines (Kawaii et al., 2001) and exhibit monoamine oxidase inhibitory activity (Hossain et al., 1996). Antiulcer activity of some naturally occurring pyranocoumarins has been reported (Goel et al., 1997). They also show anti-hepatitis B virus, anti-filarial (Casley-Smith et al., 1993) and cytotoxic activities (Su et al., 2009) and anti-TB activity (Xu et al., 2006). One natural source coumarin derivative, Chalepin, inhibits the glyceraldehyde-3-phosphate dehydrogenase of parasites (Protein Data Bank ID code 1 K3T) (Pavao et al., 2002). Herein, we report on the crystal structure of the title coumarin derivative.
We have already reported a similar compound (Jagadeesan et al., 2013). The title compound crystallizes with two molecules in the asymmetric unit. Geometrical parameters are almost similar the title compound and the previously reported structure. The six-membered pyrone and pyran rings adopt a sofa conformation. The dihedral angle between the mean planes of the pyran and phenyl rings is 66.6 (1) ° and 61.9 (1) ° for the molecule A and B respectively. The crystal packing is stabilized by C—H···O intermolecular hydrogen bonds (Fig. 2 and Table 1).