1-Amino-3-chloro-1-phenylpropan-2-one 、
maytansinol 生成 (16E,18E)-6-(3-amino-2-oxo-3-phenylpropoxy)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaene-8,23-dione