Lactone Pathway to Statins Utilizing the Wittig Reaction. The Synthesis of Rosuvastatin
作者:Zdenko Časar、Miha Steinbücher、Janez Košmrlj
DOI:10.1021/jo101050z
日期:2010.10.1
The first entry to statins via lactonized side chain is reported, exemplified by the synthesis of rosuvastatin. The key step is Wittig coupling of (2S,4R)-4-(tert-butyldimethylsilyloxy)-6-oxotetrahydro-2H-pyran-2-carbaldehyde and phosphonium salt of an appropriately functionalized pyrimidine heterocycle. One-pot deprotection and hydrolysis of the resulting 4-O-TBS rosuvastatin lactone provided rosuvastatin
据报道,他汀类药物通过内酯化侧链首次进入,以罗苏伐他汀的合成为例。关键步骤是将(2 S,4 R)-4-(叔丁基二甲基甲硅烷氧基)-6-氧四氢-2 H-吡喃-2-甲醛与适当官能化的嘧啶杂环的phospho盐进行Wittig偶联。一锅脱保护和水解所得4- O- TBS罗苏伐他汀内酯以高收率提供罗苏伐他汀。