10512-93-3
Z-VAL-ONP
+
53838-27-0
5-O-tert-butyl 1-O-methyl (2S)-2-aminopentanedioate
→
4902-24-3
5-O-tert-butyl 1-O-methyl 2-[[3-methyl-2-(phenylmethoxycarbonylamino)butanoyl]amino]pentanedioate