A novel synthesis of (3R,4R)-4-acetoxy-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone, the versatile key intermediate of carbapenem synthesis, from (S)-ethyl lactate
作者:Yoshio Ito、Takeo Kawabata、Shiro Terashima
DOI:10.1016/s0040-4039(00)85317-4
日期:——
A highly efficient synthesis of the title compound was accomplished employing the addition of diketene to chiral imine as a key stereoselective reaction and using inexpensive ()-ethy1 lactate as a starting material.