The synthesis of various pyrazino[1′,2′:1,5]pyrrolo[2,3-b]-indole-1,4-dione analogs has been successfully implemented in the present application. From these efforts, compounds having the structure of Formula I-c:
or a pharmaceutically acceptable salt, tautomer, or stereoisomer thereof, wherein R1, R2, R4-R8, R3′, R6′, and n are as defined herein, are provided. These biologically active derivatives have been further used to prepare cell-specific drug conjugates effective in treating various diseases including cancer.
本申请成功合成了各种
吡嗪并[1′,2′:1,5]
吡咯并[2,3-b]-
吲哚-1,4-二
酮类似物。通过这些努力,制备出了具有式 I-c 结构的化合物:
或其药学上可接受的盐、同系物或立体异构体,其中 R1、R2、R4-R8、R3′、R6′ 和 n 如本文所定义。这些具有
生物活性的衍
生物已被进一步用于制备细胞特异性药物共轭物,可有效治疗包括癌症在内的各种疾病。