SEARCH Articles Figures Tables Acetyl-L-phenylalanine methyl ester Aspartyl-L-Phenylalanine Methyl Ester L-Aspartyl-D-phenylalanine methyl ester L-Phenylalanine methyl ester L-Phenylalanine methyl ester hydrochloride Methyl phenylalaninate Phenylalanine ester Phenylalanine methyl ester isocyanate Phenylalanine methyl ester, initiation