Stereoselective synthesis of fluorine-containing analogues of anti-bacterial sanfetrinem and LK-157
作者:Barbara Mohar、Michel Stephan、Uroš Urleb
DOI:10.1016/j.tet.2010.03.104
日期:2010.6
The synthesis of (1′S,3R,4R)-4-acetoxy-3-(1′-trimethylsilyloxy-2′,2′,2′-trifluoroethyl)-2-azetidinone (10) precursor of modified carbapenems is described relying upon [Ru(C6Me6)(S,S)–(CH2)5NSO2DPEN]-catalyzed asymmetric transfer hydrogenation under dynamic kinetic resolution using HCO2H–Et3N. This fluorine-containing precursor yielded the targeted trinems 1 and 2 via a stereoselective key step condensation