Structure-Activity Studies on Triazolothienodiazepine Derivatives as Platelet-Activating Factor Antagonists.
作者:Shuhei MIYAZAWA、Kazuo OKANO、Naoyuki SHIMOMURA、Richard S. J. CLARK、Tesuya KAWAHARA、Osamu ASANO、Hiroyuki YOSHIMURA、Mituaki MIYAMOTO、Yoshinori SAKUMA、Kenzo MURAMOTO、Hirosi OBAISHI、Koukichi HARADA、Takashi KAJIMA、Kouji YAMADA、Hajime TSUNODA、Satoshi KATAYAMA、Shinya ABE、Naoki ASAKAWA、Shigeru SOUDA、Tohru HORIE、Tadashi SATO、Yoshimasa MACHIDA、Kouichi KATAYAMA、Isao YAMATSU
DOI:10.1248/cpb.39.3215
日期:——
assay system, the (+)-isomers displayed 50-200 times more potent anti-PAF activity than the (-)-isomers. After comparison of toxicology and pharmacokinetics, (+)-6-(2-chlorophenyl)-3- cyclopropanecarbonyl-8,11-dimethyl-2,3,4,5-tetrahydro-8H-pyrido[4' ,3':4,5]thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine (35(+)-isomer, E6123) was selected from among the compounds synthesized as a candidate for clinical
合成了一系列三唑并二氮杂并评估其抗血小板活化因子(PAF)活性。关于该系列的结构-活性关系(SAR)研究表明,将甲基引入噻二氮杂卓核的8位可导致作用时间延长。甲基的引入产生不对称中心,并且由此形成的对映异构体用光学拆分柱分离。在体外测定系统中,(+)异构体显示出比(-)异构体有效的抗PAF活性高50-200倍。比较毒理学和药代动力学后,(+)-6-(2-氯苯基)-3-环丙烷羰基-8,11-二甲基-2,3,4,5-四氢-8H-吡啶基[4',3':4 ,5] thieno [3,2-f] [1,2,4]三唑并[4,3-a] [1,4]二氮杂((35(+)-异构体,