sodium 4-maleimidobutyrate 、
14-氯柔红霉素 生成 doxorubicin-14-maleimidobutyrate 、 [2-[4-(4-amino-5-hydroxy-6-methyloxan-2-yl)oxy-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-3,4-dihydro-1H-tetracen-2-yl]-2-oxoethyl] 4-[2,5-dioxo-3-(2-oxopropyl)pyrrolidin-1-yl]butanoate