Enzymatic synthesis of phosphocarnitine, phosphogabob and fosfomycinStudies on organophosphorus compounds. Part 128. For Part 127, see C. Yuan, C. Xu and Y. Zhang, Tetrahedron, 2003, 59, 6095.
作者:Ke Wang、Yonghui Zhang、Chengye Yuan
DOI:10.1039/b307638p
日期:——
Phosphocarnitine was conveniently obtained from easily available diethyl 3-chloro-2-oxopropanephosphonates, followed by subsequent reduction, Mucor miehei lipase (IM) mediated resolution, amination and dealkylation. Candida antarctica lipase B (CALB) served as an effective biocatalyst in the resolution of several 1- or 2- hydroxyalkanephosphonates. The chlorine atom in different positions on the molecules greatly affected their enantioselectivity. CALB also showed satisfactory enantioselectivity toward those molecules bearing an azido moiety. Both enantiomers of phosphogabob and fosfomycin were also prepared via CALB-mediated resolution as the key step.
从易于获得的 3-氯-2-氧代丙烷膦酸二乙酯中方便地获得了磷卡尼汀,随后进行了还原、Mucor miehei 脂肪酶(IM)介导的解析、胺化和脱烷基化。白色念珠菌脂肪酶 B(CALB)是一种有效的生物催化剂,可用于多种 1-或 2-羟基烷基膦酸盐的分解。分子上不同位置的氯原子极大地影响了它们的对映选择性。CALB 对含有叠氮基的分子也表现出令人满意的对映选择性。磷霉素和磷霉素的两种对映体也都是通过 CALB 介导的解析作为关键步骤制备的。