Potential Antiinflammatory Agents. III. Syntheses of 1-Substituted 6-Chloro-5-cyclohexylindans as Related Compounds of 6-Chloro-5-cyclohexylindan-1-carboxylic Acid (TAI-284)
作者:SHUNSAKU NOGUCHI、MIKIHIKO OBAYASHI、SHOJI KISHIMOTO、MASAYUKI IMANISHI
DOI:10.1248/cpb.22.537
日期:——
Some 1-substituted 6-chloro-5-cyclohexylindans : 6-chloro-5-cyclohexyl-1-hydroxy-methylcarbonylindan (5), 1-acetyl-6-chloro-5-cyclohexyl-1-indanol (10), 5-[(6-chloro-5-cyclohexylindan)-1-yl] tetrazole (13) and 6-chloro-5-cyclohexyl-1-methylindan-1-carboxylic acid (14), were prepared as related compounds of 6-chloro-5-cyclohexylindan-1-carboxylic acid (TAI-284) (1), a potent nonsteroidal antiinflammatory agent. During this work an interesting rearrangement from the acetate (4) of 5 to 3-acetyl-5-chloro-6-cyclohexylindene (6) by acetic acid treatment was discovered and the mechanism of this reaction was proposed.
一些 1-取代的 6-氯-5-环己基茚满:6-氯-5-环己基-1-羟甲基碳基茚满(5)、1-乙酰基-6-氯-5-环己基-1-茚满醇(10)、5-[(6-氯-5-环己基茚满)-1-基]四氮唑(13)和 6-氯-5-环己基-1-甲基茚满-1-羧酸(14)、制备了 6-氯-5-环己基茚满-1-羧酸(TAI-284)(1)的相关化合物,TAI-284 是一种有效的非甾体抗炎剂。在这项工作中,发现了一种有趣的重排反应,即通过乙酸处理,从 5 的乙酸酯 (4) 到 3-乙酰基-5-氯-6-环己基茚 (6),并提出了这一反应的机理。