作者:Stanislav Rádl、Jan Stach、Ondřej Píša、Josef Cinibulk、Jaroslav Havlíček、Markéta Zajícová、Tomáš Pekárek
DOI:10.1002/jhet.2477
日期:2016.11
integrase inhibitor elvitegravir (1) has been developed. It starts from commercially available 2,4‐dimethoxyacetophenone, which is selectively halogenated into the position 5. The 5‐halo acetophenones are condensed with dialkyl carbonates to give the corresponding benzoylacetates. Their treatment with N,N‐dimethylformamide dimethyl acetal followed by (S)‐valinol then provided the corresponding intermediate
开发了一种新的HIV整合酶抑制剂elvitegravir(1)的活性药物成分的改进方法。它从市售的2,4-二甲氧基苯乙酮开始,将其选择性卤化至位置5。将5卤代苯乙酮与碳酸二烷基酯缩合,得到相应的苯甲酰乙酸酯。他们先用N,N-二甲基甲酰胺二甲基乙缩醛,再用(S)-缬氨醇处理,得到相应的中间体丙烯酸苯甲酰酯。通过用N,O处理可以实现芳香族亲核取代2-甲氧基,从而环化为所需的1,4-二氢喹啉-4-氧代衍生物。-双(三甲基甲硅烷基)-乙酰胺,它也作为三甲基甲硅烷基衍生物保护羟基。最后,Negishi与2-氟-3-氯苄基溴化锌的偶联以及随后的水解反应提供了elvitegravir(1)。首选的变体是从2,4-二甲氧基苯乙酮开始的七步法,可提供29.3%的依维韦韦。