information was obtained for 1 and its complexes with 2-azetidinone (2) and sulbactam (3); the latter represents the first structurally characterized dizinccomplex with a bound β-lactam drug. While 2-azetidinone was found deprotonated and bridging in the clamp of the two zinc ions in 2, in 3 and all other cases the substrates preferentially bind via their carboxylate group within the bimetallic pocket
Process for the preparation of penicillin and cephalosporin sulfones
申请人:ELI LILLY AND COMPANY
公开号:EP0109818A2
公开(公告)日:1984-05-30
The process for preparing penicillin and cephalosporin sulfones by oxidation in an aqueous medium at pH between 4.0 to 6.5 of corresponding penicillin or cephalosporin or the sulfoxide thereof with potassium hydrogen persulfate.
New use of alcaligenes faecalis penicillin G acylase
申请人:GIST-BROCADES N.V.
公开号:EP0638649A2
公开(公告)日:1995-02-15
The application of an Alcaligenes faecalis penicillin G acylase for the deacylation of some penicillanic and cephalosporanic acids and derivatives thereof have been provided.
提供了一种粪阿卡菌青霉素 G酰化酶在一些青霉素酸和头孢菌素酸及其衍生物的脱乙酰化中的应用。
Penicillin Sulfoxides and Sulfones
作者:ALFRED W. CHOW、NORMAN M. HALL、JOHN R. E. HOOVER