Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-04-25
1979-07-03
Berch, Mark L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2602391, 260307F, 260307FA, 544 90, C07D20508
Patent
active
041599845
ABSTRACT:
Compounds represented by the following formula prepared from 6-aminopenicillanic acid are key intermediates in a stereo-specific synthesis of 1-oxadethiacephalosporins, highly active antibiotics: ##STR1## [wherein COA and COB each is carboxy or protected carboxy;
REFERENCES:
pierce et al., J. Amer. Chem. Soc. 73, 2596-2598.
Nagata Wataru
Nishitani Yasuhiro
Tsuji Teruji
Yoshioka Mitsuru
Berch Mark L.
Shionogi & Co. Ltd.
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