Synthesis and Antiinflammatory and Analgesic Properties of 2-Amino-1H-benzimidazole and 1,2-Dihydro-2-iminocycloheptimidazole Derivatives.
作者:Kiyoshi TANIGUCHI、Shinji SHIGENAGA、Takatomo OGAHARA、Takashi FUJITSU、Masaaki MATSUO
DOI:10.1248/cpb.41.301
日期:——
6-cycloheptatrien-1-one (method B). Some of the compounds 3 and 4 exhibited potent antiinflammatory and analgesic activities when compared to timegadine (1) or tiaramide hydrochloride (HCl) (17). It was of interest that 1-(2-benzothiazolyl)-2-cyclohexylimino-1,2-dihydrocycloheptimid azole (4e) showed superior analgesic activity to timegadine or tiaramide HCl (ED50 = 1.7 mg/kg p.o. in the acetic acid-induced
合成了2-氨基-1H-苯并咪唑(3)和1,2-二氢-2-亚氨基环庚咪唑(4),并评估了其抗炎和镇痛活性。系列3的化合物是通过苯硫脲(6)或2-氯-1H-苯并咪唑(12)合成的。4种化合物中的大多数是通过两种方法合成的。一种是碳二亚胺(14)与2-氨基-2,4,6-环庚三烯-1-酮(方法A)的反应。另一个是胍(15)与2-氯-2,4,6-环庚三烯-1-酮(方法B)的反应。与时加定(1)或盐酸替拉酰胺(HCl)(17)相比,某些化合物3和4具有较强的抗炎和镇痛作用。有趣的是1-(2-苯并噻唑基)-2-环己基氨基-1,2-二氢环庚咪唑(4e)的镇痛活性优于timegadine或tiaramide HCl(ED50 = 1.7 mg / kg po