Construction of an Enantiomerically Pure 6-Substituted 3,5-syn-Dihydroxyhexanoic Acid System by an Enantioselective Deprotonation Strategy. Formal Synthesis of an Antiobesity Agent, (-)-Tetrahydrolipstatin.
作者:Toshio HONDA、Katsunori ENDO、Satoko ONO
DOI:10.1248/cpb.48.1545
日期:——
Preparation of 6-substituted 4-hydroxytetrahydro-2H-pyran-2-one (12), a key intermediate for the synthesis of (-)-tetrahydrolipstatin, was achieved in an optically pure form by employing an enantioselective deprotonation reaction of the prochiral bicyclic derivative (5) as a key step.
通过前手性双环的对映选择性去质子化反应,制备了光学纯的 6-取代 4-羟基四氢-2H-吡喃-2-酮 (12),这是合成 (-)-四氢利普他汀的关键中间体导数(5)是关键步骤。