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Communication | Special issue | Vol 13, No. 1, 1979, pp.255-257
Published online, 1st January, 1970
DOI: 10.3987/S-1979-01-0255
Synthesis of (6R,7R)-Phenylacetylmethyl-3-(1-methyl-IH-tetrazol-5-yl)thiomethyl-1-oxa-1-dethiacephalosporanic Acid

Shoichiro Uyeo,* Kyo Okada and Wataru Nagata

*Shionogi Research Laboratories, Shionogi & Co. Ltd., Fukushima-ku, Osaka 553-0002, Japan

Abstract

Synthesis of the title compound 8 from the 7α-methoxy, 7β-amino-1-oxacephem 3, involving stereocontrolled reduction of the 7-phenylacetylmethylene derivatives 6 to 7β-phenylacetylmethyl derivative 7, is described.