Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-10-26
1979-03-06
Randolph, John D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
544 90, C07D20500
Patent
active
041430387
ABSTRACT:
Potent antibacterial cephalosporin analogues of the following formula in forms of free acids, pharmaceutically acceptable salts, or esters preparable from penicillins through azetidinone derivatives by way of a new process, and utilizable as active ingredients in bactericidal compositions for pharmaceutical and veterinary use: ##STR1## (wherein Acyl is selected from phenylacetyl, D-mandeloyl, .alpha.-phenylmalonyl, D-.alpha.-(3-methanesulfonyl-2-oxoimidazolidin-l-yl)carbonamido-.alpha.-ph enylacetyl, and 2-thienylacetyl).
REFERENCES:
patent: 3974154 (1976-08-01), Nayler et al.
patent: 4013653 (1977-03-01), Wolfe
Chemical Abstracts, vol. 81, Abst. No. 37560f (1974) (Abst. of Christensen et al., Ger. Offen. 2,355,209).
Hamashima Yoshio
Nagata Wataru
Narisada Masayuki
Nishitani Yasuhiro
Onoue Hiroshi
Randolph John D.
Shionogi & Co. Ltd.
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