C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/301, 260/329
C07C 327/56 (2006.01) C07D 285/06 (2006.01) C07D 309/04 (2006.01) C07D 333/24 (2006.01) C07D 417/04 (2006.01)
Patent
CA 1326488
Abstract of Disclosure A compound having the formula. Image wherein R1 is selected from the group consisting of hydrogen; alkyl(C1-C6); polyfluorinated alkyls(C1-C6); phenyl; (multisubstituted)phenyl wherein the substituents are selected from alkyl(C1-C6), alkoxy(C1-C3), chloro, fluoro and trifluoromethyl; naphthyl; thienyl; phenylthio; tetrahydropyranyl; benzyl; and -COOC2H5; and R2 is selected from the group consisting of amino and alkoxy(C1-C3). These compounds are useful as intermediates in the synthesis of cephalosporins.
541592
Curran William Vincent
Lee Ving Jick
American Cyanamid Company
Smart & Biggar
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