Chiral synthesis of 3,4-disubstituted 2-azetidinones from (R,R)-(+)-tartaric acid
作者:Alice Gateau-Olesker、Jeannine Cléophax、Stephan D. Géro
DOI:10.1016/s0040-4039(00)83934-9
日期:1986.1
A novel route Is described for the enantioselective synthesis of 2-azetidinones 24 and 25 from (R,R)-(+)-tartaric acid. Monomethylation, monobenzylation of 2 and the use of site specific pig liver esterase (PLE) to produce 6 and 7 are the key steps in the sequence.