A short and efficient synthesis of enantiopure (+)-N-Boc-7-azabicyclo[2.2.1]heptan-2-one utilizing an asymmetric desymmetrization protocol: formal total synthesis of (−)-epibatidine
作者:Ganesh Pandey、Shashi Kant Tiwari、Ram Shanker Singh、Raghao S Mali
DOI:10.1016/s0040-4039(01)00616-5
日期:2001.6
A short and efficient synthesis of optically pure (+)-N-Boc-azabicyclo[2.2.1]hept-2-one (2), a precursor in the synthesis of natural (−)-epibatidine (1), is reported by the asymmetric desymmetrization of meso-N-methoxycarbonyl-2,3-bis(phenylsulfonyl)-7-azabicyclo[2.2.1]hept-2-ene (3).
据报道,一种短而有效的光学纯(+)- N -Boc-氮杂双环[2.2.1]庚-2-酮(2)的合成方法是天然(-)-依巴替丁(1)的合成前体。的非对称desymmetrization内消旋- ñ甲氧基羰基-2,3-双(苯基磺酰基)-7-氮杂二环[2.2.1]庚-2-烯(3)。