申请人:Merck Sharp & Dohme Corp.
公开号:US20170129906A1
公开(公告)日:2017-05-11
This disclosure relates to an improved synthesis of cephalosporin antibiotic compounds such as ceftolozane, and compositions and methods of use thereof. Thiadiazolyl-oximinoacetic acid compounds such as TATD can be reacted to yield the activated thiadiazolyl-oximinoacetic acid methanesulfonate ester compounds useful in the manufacture of cephalosporin antibiotic compounds.