| 摘要 |
New tetrapeptides having the formula A-Pro-Pro-Tyr(benzyl)-Ser(benzyl)-R1 wherein A is t-butoxycarbonyl, cyclohexylcarbonyl, benzyloxycarbonyl and p-nitrobenzyloxycarbonyl; Pro is D-Pro or L-Pro; Tyr(benzyl) is D-Tyr(benzyl) or L-Tyr(benzyl); Ser(benzyl) is D-Ser(benzyl) or L-Ser(benzyl) and R1 is lower alkoxy, hydrazino, amino, lower alkylamino or di(lower alkyl)amino.
|
