Structure–activity relationships of a novel class of endothelin receptor selective antagonists; 6-carboxy-2-isopropylamino-5,7-diarylcyclopenteno[1,2-b]pyridines
作者:Hirobumi Takahashi、Norikazu Ohtake、Toshihiro Sakamoto、Tomoharu Iino、Nobuhiko Kawanishi、Masayuki Nakamura、Takashi Yoshizumi、Kenji Niiyama、Satoshi Ozaki、Hiromasa Okada、Akiko Kano、Hiroyuki Takahashi、Yasuyuki Ishii、Megumu Okada、Michiyasu Saito、Yoshio Sawazaki、Takashi Hayama、Masaru Nishikibe
DOI:10.1016/j.bmcl.2004.01.008
日期:2004.3
The synthesis and structure-activity relationships of 6-carboxy-2-isopropylamino-5,7-diarylcyclopenteno[1,2-b]pyridine class of ET(A) receptor selective antagonists were described. These derivatives were prepared from the optically active key intermediates (3, 4, 10, and 13). Optimization of the substituent at the 2-position of the bottom 4-methoxyphenyl ring of the lead compound 1 led to identification
描述了6-羧基-2-异丙基氨基-5,7-二芳基环戊烯[1,2-b]吡啶类的ET(A)受体选择性拮抗剂的合成与构效关系。这些衍生物是由旋光键中间体(3、4、10和13)制备的。优化铅化合物1的底部4-甲氧基苯基环的2-位上的取代基可导致鉴定2-羟基-1-甲基乙氧基(2g和h),羟烷基(2i,m和p),3-甲氧基-2-甲基丙基(2t和u),N-乙酰基-N-甲基氨基甲基(2v)和2-(二甲基氨基甲酰基)丙基(2w)衍生物对ET(A)受体的选择性超过1000倍ET(B)受体具有出色的结合亲和力(IC(50)<0.10 nM)。通过评估1 h,4 h的血浆暴露量,进一步筛选这些化合物,