A study on the enzyme catalysed enantioselective hydrolysis of methyl 2-methyl-4-oxopentanoate, a precursor of chiral <b>γ</b>-butyrolactones
作者:Edgard A. Ferreira、Sindy V. A. Rodezno、Álvaro T. Omori、Rodrigo L. O. R. Cunha
DOI:10.1080/10242422.2018.1502274
日期:2019.3.4
Abstract Porcine pancreas lipase (PPL) resolution of the α-methyl group of racemic methyl 2-methyl-4-oxopentanoate, a valuable synthetic precursor of fragrances and marine natural products, was enhanced by salt modulation of the enzymatic hydrolysis. For the enantioselective hydrolysis of the title ester, PPL was selected from a series of esterases and lipases, and its enantioselectivity was evaluated
摘要 猪胰腺脂肪酶 (PPL) 对外消旋 2-甲基-4-氧代戊酸甲酯(一种有价值的香料和海洋天然产品的合成前体)的 α-甲基基团的解析通过酶水解的盐调节得到增强。对于标题酯的对映选择性水解,从一系列酯酶和脂肪酶中选择 PPL,并通过改变反应介质参数来评估其对映选择性。在磷酸盐缓冲液 (pH 7.2) 中使用 1.6 mol L–1 硫酸钠提高了对映选择性,允许形成 (2R)-(+)-2-methyl-4-oxopentanoate 和 (2S)-(-)-2 -甲基-4-氧代戊酸,对映体过量分别>99%和71%。该研究表明,可以通过在反应介质中使用亲液盐来调节 PPL 对映选择性。