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Title: Acylation of 7-aminocephalosporanic acids

Abstract: 6-Aminoacylamidopenicillanic acid or 7-aminoacylamidocephalosporanic acids are produced in high yields by acylating 6-aminopenicillanic acid or 7-aminocephalosporanic acid with an amino acid, or a functional equivalent thereof, having its amino group protected with N,N-disubstituted .beta.-keto acid amide, and then removing the protecting group from the resulting protected 6-aminoacylamidopenicillanic acid or protected 7-aminoacylamidocephalosporanic acid by hydrolysis.


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Inventors: Ishimaru, Toshiyasu (Suita, JP)
Shimonishi, Yasutsugu (Nishinomiya, JP)
Sakurai, Hisayuki (Osaka, JP)
Hatanaka, Minoru (Takatsuki, JP)

Application Number: 428037
Filing Date: 1973-12-26
Publication_date: 1979-12-18
Assignee: President of Osaka University (JP)
Primary Class(es): 540/228 540/229, 540/230, 540/316
Other Classes:
US Patent Ref:
3812110May, 1974Leeet al.260/243.
3842072Oct, 1974Heusler et al.260/243.

Other Refs:
Primary Examiner: Coughlan, Jr., Paul M.
Assistant Examiner:
Attorney: Craig and Antonelli