On the conversion of structural analogues of (S)-2-hydroxypropylphosphonic acid to epoxides by the final enzyme of fosfomycin biosynthesis in S. fradiae
摘要:
2-Hydroxyethyl- and (S)-2-hydroxybutylphosphonic acid were prepared, starting in the latter case from (S)-2-aminobutyric acid. They were fed to cultures of Streptomyces fradiae producing fosfomycin. Only the latter (150 mu g/mL of medium) was converted to the ethyl analogue of fosfomycin, isolated as 2-amino-1-hydroxybutylphosphonic acid (3%)in admixture with 2-amino-1-hydroxypropylphosphonic acid (97%) derived from fosfomycin. (c) 2008 Elsevier Ltd. All rights reserved.
Kinetic resolution of hydroxyalkanephosphonates catalyzed by Candida antarctica lipase B in organic media
作者:Yonghui Zhang、Chengye Yuan、Zuyi Li
DOI:10.1016/s0040-4020(02)00229-6
日期:2002.4
A series of hydroxyalkanephosphonates were studied as substrates for CALB catalyzed acetylation with emphasis on enantioselectivity and chemical structure of substrates. Some hydroxyalkanephosphonates could be resolved successfully to give both (R)- and (S)-isomers with high enantiomeric excess.