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-catalyzed kinetic resolution 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
在5-羟基吡咯烷酮-2-酮和5-羟基-1,5-二氢吡咯-2-酮衍生物的脂肪酶催化的动力学拆分中实现了高对映选择性。脂肪酶PS和Novozym 435是成功的催化剂(E => 1000)。N-保护的5-羟基-1,5-二氢吡咯-2-酮衍生物的乙酰化得到具有高对映选择性的(R)-乙酸酯,而在没有N-保护的情况下,获得了(S)-乙酸酯。