## Abstract Semiempirical calculations were used to conduct a comprehensive study of the thiolysis of the fundamental core of penicillins and cephalosporins. The significance of the intramolecular protonation of the Ξ²βlactam nitrogen in the formation and cleavage of the tetrahedral intermediate (**
n-bromosuccinimide assay of penicillins and cephalosporins
β Scribed by Joseph F. Alicino
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- English
- Weight
- 225 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0022-3549
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
Newly defined lipophilic indexes, log k', of a series of penicillins and cephalosporins were rapidly and reliably determined by reversed-phase high-pressure liquid chromatography (HPLC) on bonded octadecylsilane supports. The log k' values obtained from their retention times exhibited a linear relat