An efficient synthesis of (3R,4R)-3-(1-(R)-hydroxyethyl)-4-(benzoyloxy)-2-azetidinone from L-threonine. Use of phenylalkoxymethyl as a novel N-protecting group
An efficient synthesis of (3R,4R)-3-(1-(R)-hydroxyethyl)-4-(benzoyloxy)-2-azetidinone from L-threonine. Use of phenylalkoxymethyl as a novel N-protecting group
A multistep process for preparing azetidinone intermediate useful for making anti-bacterial penems and car- bapenams is disclosed. The process uses the group as an easily
removable nitrogen protecting groups.