TRIPEPTIDES DERIVED FROM PHENYLALANINE AND HISTIDINE THEIR PREPARATION AND USE

摘要

1525664 DL- and L-Phenylalanine ethyl esters; L-histidine methyl ester DR L ZAMBELETTI SpA 9 April 1976 [9 April 1975] 14598/76 Heading C2C [Also in Division C3] L-phenylalanine ethyl ester, L-histidine methyl ester, DL-phenylalanine ethyl ester, are prepared by the neutralization of L-phenylalanine ethyl ester hydrochloride, L-histidine methyl ester hydrochloride and DL-phenylalanine ethyl ester hydrochloride respectively with a saturated aqueous solution of potassium carbonate.