STUDY OF PLANT COUMARINS
669
8. Ronad, P.M., Noolvi, M.N., Sapkal, S., Dharbhamulla, S.,
XVII. Yield 80 mg (65%), yellowish oily substance.
IR spectrum, cm–1: 3478, 3431, 3086, 3055, 2241,
1784, 1738, 1703, 1674, 1626, 1505, 1445, 1404,
1369, 1329, 1292, 1271, 1213, 1161, 1138, 1099,
1030, 926, 909, 854, 835, 755, 762, 748, 731. UV
spectrum (EtOH), λmax, nm (log ε): 210 (4.32), 220
(4.21), 237 (4.19), 298 (3.51), 326 (3.73), 371 (3.24).
1Н NMR spectrum (CDCl3–CD3OD), δ, ppm: 1.37 s
(3H, С3"Н3), 1.55 s (3H, C4"Н3), 3.72 s (3H, OСН3),
4.26 s (1Н, Н2'), 4.31 d (1Н, NН, J 6.2 Hz), 4.68 d
(1Н, Н5', J 4.3 Hz), 5.48 d.d (1Н, Н6', J 6.2, 4.3 Hz),
6.40 d (1Н, Н3, J 9.7 Hz), 7.11 s (1Н, Н8), 7.82 d (1Н,
Н4, J 9.7 Hz), 8.12 s (1Н, Н5). 13С NMR spectrum
(CDCl3–CD3OD), δ, ppm: 27.24 (СН3), 29.16 (СН3),
51.75 (OСН3), 63.54 (С6'), 67.02 (С5'), 68.08 (С3'),
73.86 (С2'), 103.10 (C6), 111.57 (C8), 112.06 (C4а),
113.27 (C3), 118.11 (CN), 130.16 (C5), 142.44 (C4),
145.29 (C7), 157.36 (C8a), 161.11 (C2), 165.26 (С7'),
169.88 (C=O, С2'). Found, %: C 57.35; H 4.67; N
10.31. С19Н17N3O5S. Calculated, %: С 57.13; H 4.29;
N 10.52.
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RUSSIAN JOURNAL OF ORGANIC CHEMISTRY Vol. 50 No. 5 2014