C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/100
C07D 501/14 (2006.01) C07D 501/04 (2006.01) C07D 501/16 (2006.01) C07D 501/18 (2006.01) C07D 501/20 (2006.01) C07D 501/26 (2006.01) C07D 501/32 (2006.01) C07D 501/34 (2006.01) C07D 501/36 (2006.01) C07D 501/58 (2006.01) C07D 501/60 (2006.01) A61K 31/545 (2006.01)
Patent
CA 1071621
ABSTRACT OF THE DISCLOSURE The use of an iodolactone as an esterifying derivative in the preparation of lactonyl esters of cephalosporins substantially reduces double bond migration during the esterification reaction.
244626
Bentley Peter H.
Brooks Gerald
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