penicillins and cephalosporins have been converted into the corresponding 6a(7a)-formamido-
6α-(N-substituted formamido) penicillins and derivatives
✍ Scribed by Alison C Brown; Angela W Guest; Peter H Milner
- Book ID
- 104232863
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 253 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
A simple N-substituted formamido penicillin was found to differ in rate and mode of decomposition from its unsubstituted counterpart. A series of derivatives were prepared and their antibacterial properties examined.
📜 SIMILAR VOLUMES
The theory that penicillins and cephalosporins are D-alanyl-D-alanine surrogates led Strominger and Tipper (2) to predict that placing a methyl group in the same position as is found in the D-alanyl residue, i.e. a to the lactam carbonyl, would increase antibacterial effectiveness.
Hemiacetal formation from 6a-formylpenicillins followed by oxidation h-as bmvided a .series of esters of Ga-carboxvuenicillins mu3 &e r-