Shenoy, Gautham; Kim, Pilho; Goodwin, Michael, Heterocycles, 2004, vol. 63, # 3, p. 519 - 527
作者:Shenoy, Gautham、Kim, Pilho、Goodwin, Michael、Nguyen, Quynh-Anh、Barry III, Clifton E.、Dowd, Cynthia S.
DOI:——
日期:——
Lipase-catalyzed kinetic resolution of thiotetronic acid derivatives bearing a chiral quaternary carbon: total synthesis of (R)-thiolactomycin and its O-analogue
We have developed a chemoenzymatic synthesis of (R)-thiolactomycin (1) having a chiral quaternary carbon atom at C5. In the kinetic resolution of the thiotetronic acid precursor 4, both enantiomers were obtained with high enantiomeric excess by use of Chirazyme® L-2. Chemical transformations of the (R)-alcohol 4 provided the chiral (R)-thiolactomycin (1) in 36% yield in five steps.