Studies on proton pump inhibitors. III. Synthesis of 8-((2-benzimidazolyl)sulfinylmethyl)-1,2-di-hydroquinolines and related compounds.
作者:Minoru UCHIDA、Masatoshi CHIHIRO、Seiji MORITA、Hiroshi YAMASHITA、Katsuya YAMASAKI、Toshimi KANBE、Youichi YABUUCHI、Kazuyuki NAKAGAWA
DOI:10.1248/cpb.38.534
日期:——
A series of 8-[(2-benzimidazolyl)sulfinylmethyl]-1, 2-dihydroquinolines (XIIIa-g) was synthesized and tested for (H+ + K+) adenosine triphosphatase (ATPase)-inhibitory and antisecretory activities. These compounds were synthesized by the oxidation of sulfides, which were obtained from the reaction of 8-chloromethyl-1, 2-dihydroquinolines (XIa-c) and 2-mercaptobenzimidazoles in the presence of sodium hydride. The key intermediates, 8-hydroxymethyl-1, 2-dihydroquinolines (IVa-c), were perpared by the reduction-alkylation of 8-acetoxymethyl- or 8-hydroxymethylquinolines with sodium cyanoborohydride-formic acid. Among XIIIa-g, the 1, 4-dimethyl-1, 2-dihydroquinoline derivative (XIIIa) was found to have the highest activity.
合成了一系列 8-[(2-苯并咪唑基)亚磺酰甲基]-1, 2-二氢喹啉 (XIIIa-g),并测试了 (H+ + K+) 腺苷三磷酸酶 (ATPase) 抑制和抗分泌活性。这些化合物通过硫化物的氧化合成,硫化物由8-氯甲基-1,2-二氢喹啉(XIa-c)和2-巯基苯并咪唑在氢化钠存在下反应获得。关键中间体8-羟甲基-1, 2-二氢喹啉(IVa-c)是通过8-乙酰氧基甲基-或8-羟甲基喹啉与氰基硼氢化钠-甲酸的还原烷基化制备的。在XIIIa-g中,发现1,4-二甲基-1,2-二氢喹啉衍生物(XIIIa)具有最高的活性。