The MMPI [14C]ABT-770 (1), N-[(1S)-1-[(4,4-Dimethyl-2,5-dioxo-1-imi-dazolidinyl)methyl]]-2-[[4′-(trifluoromethoxy)[1,1′-biphenyl]-4-yl]oxy]ethyl]-N-hydroxyformamide was synthesized in 8 steps using 4-bromophenol-UL-14C (10) as a starting material. The Carbon-14 label was introduced in one of the metabolically stable biphenyl rings. The key sequence of the synthesis was a three-step one-pot reaction in which the hydantoin moiety was introduced, the imine oxidized and further hydrolyzed to get the penultimate precursor to [14C]ABT-770 (1) in 56% yield. Copyright © 2003 John Wiley & Sons, Ltd.
MMPI [14C]ABT-770 (1), N-[(1S)-1-[(4,
4-二甲基-2,5-二氧代-1-
咪唑啉基)甲基]]-2-[[4以
4-溴苯酚-UL-14C (10)为起始原料,分8步合成'-(三
氟甲氧基)[1,1'-
联苯]-4-基]氧基]乙基]-N-羟基甲酰胺。 Carbon-14 标记被引入代谢稳定的
联苯环之一中。合成的关键顺序是三步一锅反应,其中引入乙内酰
脲部分,氧化
亚胺并进一步
水解,得到[14C]ABT-770 (1) 的倒数第二个前体,产率 56%。版权所有 © 2003 约翰·威利父子有限公司