Synthesis of 3-Hydroxycephems from Penicillin G through Cyclization of Chlorinated 4-(Phenylsulfonylthio)-2-azetidinones Promoted by a BiCl3/Sn or TiCl4/Sn …

H Tanaka, M Taniguchi, Y Kameyama…

Index: Bulletin of the Chemical Society of Japan, , vol. 68, # 5 p. 1385 - 1391

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Citation Number: 11

Abstract

... 300S (300 MHz) spectrometer or a Varian FT-80 (80 MHz) spectrometer and chemical shifts are ... of ß- Lactam Antibiotics," ed by PH Bentley and R. Southgate, Royal Society of Chemistry ... 3) RDG Cooper and GA Koppel, "Chemistry and Biology of /3-Lactam Antibiotics," ed by RB ...