Organic compounds -- part of the class 532-570 series – Organic compounds
Patent
1986-06-09
1987-07-14
Gerstl, Robert
Organic compounds -- part of the class 532-570 series
Organic compounds
C07D29306
Patent
active
046804080
ABSTRACT:
There are presented compounds of the formula ##STR1## wherein R.sup.1 is one of the 3-substituents usable in cephalosporin chemistry, R.sup.2 is hydrogen, lower alkyl or COOR.sup.3 -lower alkyl, wherein R.sup.3 is hydrogen, a cation of a base or a readily hydrolyzable ester group, and X is sulphur, oxygen or one of the groups --SO-- and --SO.sub.2 --, and the readily hydrolyzable esters, readily hydrolyzable ethers and salts of these compounds and hydrates of the compounds of formula I or of their esters, ethers and salts, also presented are methods for the manufacture of these compounds as well as compounds used in their manufacture.
REFERENCES:
patent: 4458072 (1984-07-01), Reiner et al.
Reiner Roland
Weiss Urs
Gerstl Robert
Hoffmann-La Roche Inc.
Leon Bernard S.
Mazza Richard J.
Saxe Jon S.
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