(S-Trityl)-L-cysteinyl-L-leucine, methyl ester, hydrochloride 35959-71-8 L-Cysteinyl-L-leucine, (S-triphenylmethyl)-, methyl ester, hydrochloride L-Leucine, N-(S-(triphenylmethyl)-L-cysteinyl)-, methyl ester, monohydrochloride NSC 127737 Valeric acid, 2-(2-amino-3-(tritylthio)propionamido)-4-methyl, methyl ester, hydrochloride