Convenient route to both enantiomers of chiral 5-hydroxypyrrolidin-2-one and 5-hydroxy-1,5-dihydropyrrol-2-one: reverse enantioselectivity in lipase-catalyzed kinetic resolution
作者:Kunihiko Takabe、Masahisa Suzuki、Toshiki Nishi、Masaomi Hiyoshi、Yasuaki Takamori、Hidemi Yoda、Nobuyuki Mase
DOI:10.1016/s0040-4039(00)01745-7
日期:2000.12
High enantioselectivity was achieved in the lipase-catalyzedkineticresolution of 5-hydroxypyrrolidin-2-one and 5-hydroxy-1,5-dihydropyrrol-2-one derivatives. Lipase PS and Novozym 435 were the successful catalysts (E=>1000). The acetylation of the N-protected 5-hydroxy-1,5-dihydropyrrol-2-one derivative gave the (R)-acetate with high enantioselectivity, while, without N-protection, the (S)-acetate