Inhibition of human leukocyte elastase. 1. Inhibition by C-7-substituted cephalosporin tert-butyl esters

Inhibition of human leukocyte elastase. 1. Inhibition by C-7-substituted cephalosporin tert-butyl esters Oral absorption of cephalosproin antibiotics 2. Expanded structure-activity relationships of 7-arylacetamido-3-substituted cephalosporins Simple phosphonic inhibitors of human neutrophil elastase Semisynthetic cephalosporins. Synthesis and structure-activity relations of analogs with 7-acyl groups derived from 2-(cyanomethylthio)acetic acid or 2-[(2,2,2-trifluoroethyl)thio]acetic acid and their sulfoxides and sulfones Cysteine Derivatives as Inhibitors for Carboxypeptidase A:  Synthesis and Structure−Activity Relationships Semisynthetic cephalosporins. Synthesis and structure-activity relations of 7-sulfonylacetamido-3-cephem-4-carboxylic acids Synthesis of cephems bearing olefinic sulfoxide side chains as potential β-lactamase inhibitors Doxorubicin prodrug on the basis of tert -butyl cephalosporanate sulfones Structure-activity relations in cephalosporins prepared from penicillins. 1. 7.beta.-Acylamino derivatives of 3-benzyl- and 3-(3-pyridylmethyl)ceph-3-em-4-carboxylic acids The synthesis and evaluation of 6-alkylidene-2'β-substituted penam sulfones as β-lactamase inhibitors