Pyrrolobenzodiazepines as key intermediates in the synthesis of dimeric cytotoxic pyrrolobenzodiazepines
申请人:Howard Wilson Philip
公开号:US20070191309A1
公开(公告)日:2007-08-16
Compounds and a method of synthesis of compounds of formula (Ia) or (Ib): and salts, solvates, and chemically protected forms thereof, wherein the dotted lines indicate the optional presence of a double bond between C1 and C2 or C2 and C3; R
2
and R
3
are independently selected from —H, ═O, ═CH
2
, —CN, —R, OR, halo, ═CH—R, O—SO
2
—R, CO
2
R and COR; R
10
is a carbamate-based nitrogen protecting group; and R
11
is an oxygen protecting group.
化合物及其合成方法公式(Ia)或(Ib)的化合物:以及其盐、溶剂化物和化学保护形式,其中点线表示C1和C2或C2和C3之间存在双键的可选存在;R2和R3独立地选择自—H,═O,═CH2,—CN,—R,OR,卤素,═CH—R,O—SO2—R,CO2R和COR;R10是基于碳酸酯的氮保护基;R11是氧保护基。