Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1980-01-14
1981-06-02
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
2602454, 544405, 546174, 546271, 546333, 546145, C07D49804, C07D40114, C07D41314
Patent
active
042712955
ABSTRACT:
Useful intermediates for preparing a 1-dethia-1-oxacephalosporin and represented by the following formula: ##STR1## (wherein R is a monovalent group resulting from the elimination of the carbonyl function of an acyl group derived from a carboxylic or carbonic acid;
REFERENCES:
patent: 4155911 (1979-05-01), Foglio et al.
patent: 4159984 (1979-07-01), Yoshioka et al.
patent: 4183855 (1980-01-01), Yoshioka et al.
Hamashima Yoshio
Kikkawa Ikuo
Nagata Wataru
Tsuji Teruji
Uyeo Shoichiro
Ford John M.
Shionogi & Co. Ltd.
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