申请人:Medimmune Limited
公开号:US11370801B2
公开(公告)日:2022-06-28
A compound of formula I and salts and solvates thereof, wherein: R6 and R9 are independently selected from H, R, OH, OR, SH, SR, NH2, NHR, NRR′, nitro, Me3Sn and halo; where R and R′ are independently selected from optionally substituted C1-12 alkyl, C3-20 heterocyclyl and C5-20 aryl groups; R7 is selected from H, R, OH, OR, SH, SR, NH2, NHR, NRR′, nitro, Me3Sn and halo; R″ is a C3-12 alkylene group, which chain may be interrupted by one or more heteroatoms, e.g. O, S, NRN2 (where RN2 is H or C1-4 alkyl), and/or aromatic rings, e.g. benzene or pyridine; Y and Y′ are selected from O, S, or NH; R6, R7, R9 are selected from the same groups as R6, R7 and R9 respectively; R11b is selected from OH, ORA, where RA is C1-4 alkyl; and RL is a linker for connection to a cell binding agent.
一种式 I 的化合物及其盐和溶剂,其中:R6和R9独立地选自H、R、OH、OR、SH、SR、NH2、NHR、NRR′、硝基、Me3Sn和卤;其中R和R′独立地选自任选取代的C1-12烷基、C3-20杂环基和C5-20芳基;R7 选自 H、R、OH、OR、SH、SR、NH2、NHR、NRR′、硝基、Me3Sn 和卤素; R″ 是 C3-12 亚烷基,其链可被一个或多个杂原子打断,如 O、S、NRSn 和卤素。例如 O、S、NRN2(其中 RN2 是 H 或 C1-4 烷基)和/或芳香环,例如苯或吡啶;Y 和 Y′选自 O、S 或 NH;R6、R7、R9 分别选自与 R6、R7 和 R9 相同的基团;R11b 选自 OH、ORA,其中 RA 是 C1-4 烷基;RL 是用于与细胞结合剂连接的连接剂。