Nonpeptide angiotensin II receptor antagonists. Synthesis and biological activity of potential prodrugs of benzimidazole-7-carboxylic acids
作者:Keiji Kubo、Yasuhisa Kohara、Yoshinobu Yoshimura、Yoshiyuki Inada、Yumiko Shibouta、Yoshiyasu Furukawa、Takeshi Kato、Kohei Nishikawa、Takehiko Naka
DOI:10.1021/jm00068a011
日期:1993.8
In order to improve the oral bioavailability (BA) of 2-butyl-1-[[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-1H-benzimid azole - 7-carboxylic acid (3: CV-11194) and 2-ethoxy-1-[[2'-(1H-tetrazol-5-yl)biphenyl-4- yl]methyl]-1H-benzimidazole-7-carboxylic acid (4: CV-11974), novel angiotensin II (AII) receptor antagonists, chemical modification to yield prodrugs has been examined. After selective tritylation
为了提高2-丁基-1-[[[2'-(1H-四唑-5-基)联苯-4-基]甲基] -1H-苯并咪唑-7-羧酸的口服生物利用度(BA) 3:CV-11194)和2-乙氧基-1-[[[2'-(1H-四唑-5-基)联苯-4-基]甲基] -1H-苯并咪唑-7-羧酸(4:CV-11974 ),新型血管紧张素II(AII)受体拮抗剂,化学修饰以产生前药的方法已得到检验。在3和4中对四唑环进行选择性三苯甲基化后,用各种烷基卤化物处理N-三苯甲基化的苯并咪唑-7-羧酸(6、7),然后用盐酸脱保护,得到3和4的酯。合成了1-(酰氧基)烷基酯和1-[((烷氧基羰基)氧基]烷基酯,双酯衍生物。研究了它们对大鼠和口服BA对AII诱导的升压反应的抑制作用。(3)和(4)的(新戊酰氧基)甲基和(+/-)-1-[[((环己基氧基)-羰基]氧基]乙基酯显示口服生物利用度显着增加,这显着增强了母体化合物对AII诱导的升压药的抑