Studies on uricosuric diuretics. II. 6,7-Dichloro-4-nitro-, 6,7-dichloro-4-sulfamoyl- and 6,7-dichloro-4-acyl-2,3-dihydrobenzofuran-2-carboxylic acids.
作者:HIROSHI HARADA、YOSHIHIRO MATSUSHITA、MITSUAKI YODO、MASUHISA NAKAMURA、YUKIO YONETANI
DOI:10.1248/cpb.35.3215
日期:——
2, 3-Dihydrobenzofuran-2-carboxylic acids substituted with electronegative nitro, acyl and sulfamoyl groups at the 4-position were synthesized and tested for oral diuretic and saluretic activities in rats and mice. The intraperitoneal uricosuric activity was also tested by a clearance method using oxonate-treated rats. The 4-nitro compounds (11b, 12b, 13b and 14b) showed more potent saluretic activity than the corresponding 5-nitro compounds (7b, 18b, 19b and 20). Although the 5-acyl compounds were reported to show potent saluretic activities, the 4-acyl compounds (41a and b) had much lower activities. On the other hand, the saluretic activities of the 4-sulfamoyl compounds (22a-e) were as potent as those of the 5-sulfamoyl compounds reported previously. Uricosuric activity was found in 14b and 22a.
合成了 2,3-二氢苯并呋喃-2-羧酸,并在其 4-位上用电负性的硝基、酰基和氨基磺酰基取代。此外,还采用清除法测试了经氧化乐果处理的大鼠腹腔内的尿尿素活性。与相应的 5-硝基化合物(7b、18b、19b 和 20)相比,4-硝基化合物(11b、12b、13b 和 14b)显示出更强的利尿活性。尽管有报告称 5-酰基化合物具有强效的盐渍化活性,但 4-酰基化合物(41a 和 b)的活性要低得多。另一方面,4-氨基磺酰基化合物(22a-e)的盐酸化活性与之前报告的 5-氨基磺酰基化合物一样强。14b 和 22a 具有降尿酸活性。