1,5-Benzoxathiepin derivatives. II. Synthesis and serotonin S2-receptor-blocking activity of aminoalkyl-substituted 3,4-dihydro-2H-1,5-benzoxathiepin-3-ols and related compounds.
作者:HIROSADA SUGIHARA、HIROSHI MABUCHI、MINORU HIRATA、TETSUJI IMAMOTO、YUTAKA KAWAMATSU
DOI:10.1248/cpb.35.1930
日期:——
Novel 1, 5-benzoxathiepin derivatives, 3, 4-dihydro-2H-1, 5-benzoxathiepin-3-ols with an aminoalkyl group at the 2-, 3- or 4-position, were synthesized and evaluated for serotonin S2-receptor-blocking activity and adrenergic α1-receptor-blocking activity. Methyl 4-aminoalky1-3-hydroxy-3, 4-dihydro-2H-1, 5-benzoxathiepin-4-carboxylates showed significant S2-receptor-block-ing activities. Structure-activity relationships (including the results of a conformational study and skeletal modifications) were examined. In the series of 1, 5-benzoxathiepin, 1-benzoxepin and 1-benzothiepin derivatives, methyl cis-3-hydroxy-7-methoxy-4- [3- (4-phenyl -1-piperazinyl) propyl] -3, 4-dihydro-2H-1, 5-benzoxathiepin-4-carboxylatehydrochloride (CV-5197) showed the most potent and the most selective S2-receptor-blocking activity in the binding profile, and was chosen as a candidate for further pharmacological evaluation.
新化合物1,5-苯并氧硫杂蒽衍生物,即3,4-二氢-2H-1,5-苯并氧硫杂蒽-3-醇,在2-、3-或4-位上具有氨基烷基团,被合成并评估其对血清素S2受体阻断活性和肾上腺素α1受体阻断活性的作用。甲基4-氨基烷基-3-羟基-3,4-二氢-2H-1,5-苯并氧硫杂蒽-4-羧酸酯显示出显著的S2受体阻断活性。研究了结构-活性关系(包括构象研究结果和骨架修饰)。在一系列1,5-苯并氧硫杂蒽、1-苯并氧杂蒽和1-苯并硫杂蒽衍生物中,甲基顺式-3-羟基-7-甲氧基-4-[3-(4-苯基-1-哌嗪基)丙基]-3,4-二氢-2H-1,5-苯并氧硫杂蒽-4-羧酸酯盐酸盐(CV-5197)在结合谱图上显示出最强的S2受体阻断活性和选择性,并被选作进一步药理评估的候选药物。