(R)-(-)-3-异丙基-2,5-哌嗪二酮

C: DTRP-DASP-PRO-DVAL-LEU

6-amino-2-[[2-[(2-amino-3-methylbutanoyl)amino]-4-methylpentanoyl]amino]-N-[4-[bis(2-chloroethyl)amino]phenyl]hexanamide,2,2,2-trifluoroacetic acid