Spirocyclopropane compounds. III. Synthesis of spiro(benzofuran-2(3H),1'-cyclopropan)-3-ones for evaluation as gastric antisecretory and antiulcer agents.
作者:MITSURU KAWADA、MASAZUMI WATANABE、KAYOKO OKAMOTO、HIROSADA SUGIHARA、TAKEO HIRATA、YOSHITAKA MAKI、ISUKE IMADA、YASUSHI SANNO
DOI:10.1248/cpb.32.3532
日期:——
Spiro [benzofuran-2 (3H), 1'-cyclopropan]-3-one (VI-1) and its derivatives (VI-2-VI-75) were synthesized in the same manner as described previously for the synthesis of spiro [cyclopropane-1, 2'-[2H] indol]-3'(1'H)-ones (I). These spiro [benzofuran-2 (3H), 1'-cyclopropan]-3-ones were evaluated for gastric antisecretory activity and protective activity against lesions induced by water-immersion restraint stress in the rat. The most potent antiulcer compounds (VI-17 and VI-55) were obtained by the introduction of an acetyl or dimethylamino group at the 5-position on the benzene ring. The most interesting member of the series, 5-acetylspiro [benzofuran-2 (3H), 1'-cyclopropan]-3-one (VI-17, AG-629), was selected as a candidate for clinical studies.
苯并呋喃-2(3H),1'-环丙烷]-3-酮(VI-1)及其衍生物(VI-2至VI-75)按照之前合成螺[环丙烷-1,2'-[2H]吲哚]-3'(1'H)-酮(I)的方法合成了。这些螺[苯并呋喃-2(3H),1'-环丙烷]-3-酮被评估了其抗胃液分泌活性和对大鼠水浸束缚应激诱导的损伤的保护活性。通过在苯环的5位引入乙酰基或二甲氨基,获得了最具效力的抗溃疡化合物(VI-17和VI-55)。该系列中最有趣的成员,5-乙酰基螺[苯并呋喃-2(3H),1'-环丙烷]-3-酮(VI-17,AG-629),被选为临床研究的候选药物。