2304-94-1
N-CBZ-beta-丙氨酸
→
~57%
886-64-6
benzyl N-(3-amino-3-oxopropyl)carbamate
54755-77-0
methyl 3-(benzyloxycarbonyl)propanoate
82267-36-5
+
543-27-1
氯甲酸异丁酯