申请人:ImmunoGen Inc.
公开号:US05208020A1
公开(公告)日:1993-05-04
A cytotoxic agent comprising one or more maytansinoids linked to a cell binding agent. A therapeutic agent for killing selected cell populations comprising: (a) a cytotoxic amount of one or more maytansinoids linked to a cell binding agent, and (b) a pharmaceutically acceptable carrier diluent or excipient. A method for killing selected cell populations comprising contacting a cell population or tissue suspected of containing cells from said selected cell population with a cytotoxic amount of a cytotoxic agent comprising one or more maytansinoids linked to a cell binding agent. An N-methyl-alanine-containing ester of maytansinol or an analogue of maytansinol, said N-methyl-alanine-containing ester comprising a linking group capable of linking an N-methyl-alanine-containing maytansinoid ester to a chemical moiety. N-methyl-cysteine-containing ester of maytansinol or an analogue of maytansinol.
一种细胞毒性剂,包括与细胞结合剂连接的一种或多种梅坦西酮类化合物。一种用于杀灭选定细胞群体的治疗剂,包括:(a) 与细胞结合剂连接的一种或多种梅坦西酮类化合物的细胞毒性量,以及(b) 一种药用可接受的载体稀释剂或赋形剂。一种用于杀灭选定细胞群体的方法,包括将疑似含有来自所述选定细胞群体的细胞的细胞群体或组织与包括与细胞结合剂连接的一种或多种梅坦西酮类化合物的细胞毒性剂的细胞毒性量接触。一种甲基-丙氨酸酯基梅坦西酮或梅坦西酮类似物,所述甲基-丙氨酸酯基包括一种能够将甲基-丙氨酸酯基梅坦西酮与化学基团连接的连接基团。梅坦西酮的甲基-半胱氨酸酯基或梅坦西酮类似物。