申请人:American Home Products Corporation
公开号:US04320051A1
公开(公告)日:1982-03-16
The analgesic tripeptide amides of the formula: ##STR1## in which X.sup.2 is D-Ala, D-Ser, D-Thr, D-Met, D-Cys, D-Trp, or D-Asn; R.sup.1 is hydrogen, alkyl of 1 to 6 carbon atoms, allyl, cyclopropylmethyl or cyclobutylmethyl; R.sup.2 is hydrogen or alkyl of 1 to 6 carbon atoms; R.sup.3 is hydrogen or alkyl of 1 to 6 carbon atoms; R.sup.4 is isobutyl, cyclohexyl, benzyl, p-halobenzyl or p-nitrobenzyl; R.sup.5 is hydrogen or alkyl of 1 to 6 carbon atoms; and R.sup.6 is hydrogen, alkyl of 1 to 6 carbon atoms, 2-hydroxyethyl, benzyl, diphenylmethyl, phenyl, p-halophenyl, p-nitrophenyl, ##STR2## or --CH.sub.2 CH.sub.2 SCH.sub.3 ; or a pharmaceutically acceptable salt thereof.
公式为:##STR1## 其中 X.sup.2 为 D-Ala、D-Ser、D-Thr、D-Met、D-Cys、D-Trp 或 D-Asn;R.sup.1 为氢、1至6个碳原子的烷基、烯丙基、环丙基甲基或环丁基甲基;R.sup.2 为氢或1至6个碳原子的烷基;R.sup.3 为氢或1至6个碳原子的烷基;R.sup.4 为异丁基、环己基、苄基、对-卤苄基或对-硝基苄基;R.sup.5 为氢或1至6个碳原子的烷基;R.sup.6 为氢、1至6个碳原子的烷基、2-羟乙基、苄基、二苯甲基、苯基、对-卤苯基、对-硝基苯基、##STR2## 或 --CH.sub.2 CH.sub.2 SCH.sub.3;或其药学上可接受的盐。