Development of Potent Serotonin-3 (5-HT3) Receptor Antagonists. II. Structure-Activity Relationships of N-(1-Benzyl-4-methylhexahydro-lH-1,4-diazepin-6-yl)carboxamides.
作者:Hiroshi HARADA、Toshiya MORIE、Yoshimi HIROKAWA、Hideo TERAUCHI、Iwao FUJIWARA、Naoyuki YOSHIDA、Shiro KATO
DOI:10.1248/cpb.43.1912
日期:——
reflex in rats are described. Heteroaromatic rings such as pyrrole, thiophene, furan, pyridine, pyridazine, 1,2-benzisoxazole, indole, quinoline, and isoquinoline rings showed weak 5-HT3 receptor antagonistic activity. Within this series, use of the 1H-indazole ring as an aromatic moiety led to a substantial increase of the activity; the 1H-indazolylcarboxamides 54, 57, 97, and 102 showed potent 5-HT3
我们对4-氨基-5-氯-2-乙氧基苯甲酰胺的研究导致发现N-(1,4-二甲基六氢-1H-1,4-二氮杂-6-6基)苯甲酰胺9和1-苄基-4 -甲基六氢-1H-1,4-二氮杂analogue类似物10是有效的血清素3(5-HT3)受体拮抗剂。描述了结构和活性关系(SAR)研究9和10的芳香核对大鼠von Bezold-Jarisch反射的抑制作用。杂芳族环,如吡咯,噻吩,呋喃,吡啶,哒嗪,1,2-苯并恶唑环,吲哚,喹啉和异喹啉环显示弱的5-HT3受体拮抗活性。在这个系列中,使用1H-吲唑环作为芳族部分会导致活性的大幅提高。1H-吲唑基羧酰胺54、57、97和102显示出有效的5-HT3受体拮抗活性。