Stereocontrolled total synthesis of the
β
Anthony G.M Barrett; Minn-Chang Cheng; Santi Sakdarat; Christopher D Spilling; S
π
Article
π
1989
π
Elsevier Science
π
French
β 140 KB
3R)-4-Acetoxy-3-trimethylsilyl-2-azetidinone, was converted into optically pure benzyl penicillanate in seven steps (22%) using (benzyloxy)nitromethane as a reagent for ring annulation.