A facile synthesis, anti-inflammatory and analgesic activity of isoxazolyl-2,3-dihydrospiro[benzo[f]isoindole-1,3′-indoline]-2′,4,9-triones
作者:E. Rajanarendar、S. Ramakrishna、K. Govardhan Reddy、D. Nagaraju、Y.N. Reddy
DOI:10.1016/j.bmcl.2013.04.053
日期:2013.7
A new series of isoxazolyl-2,3-dihydrospiro[benzo[f]isoindole-1,3'-indoline]-2',4,9-triones (14) were synthesized by reaction of 4-amino-3-methyl-5-styrylisoxazole 10 with chloroacetic acid followed by a three component reaction with substituted isatins 12 and 1,4-naphthoquinone 13 using Ceric ammonium nitrate (CAN) catalyst under aerial oxidation condition. Structures of these compounds were established on the basis of IR, H-1 NMR, C-13 NMR and mass spectral data. The title compounds 14a-j were evaluated for their anti-inflammatory and analgesic activity. Compounds 14d, 14e and 14f exhibited potent anti-inflammatory and analgesic activity as that of standard drugs. (c) 2013 Elsevier Ltd. All rights reserved.