1,3,4 substituted and bicyclic derivatives of 2-azetidinones and processes for preparation thereof
US5453502A · kind A · utility
9Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides 1,3,4 substituted and bicyclic derivatives of 2-azetidinones and processes therefor. These compounds are valuable intermediates useful in the preparation of 1-carba(dethia)cephalosporin antibiotics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.