Stereocontrolled total synthesis of the
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Anthony G.M Barrett; Minn-Chang Cheng; Santi Sakdarat; Christopher D Spilling; S
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Article
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1989
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Elsevier Science
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French
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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.