Intermediate for the preparation of penems
US5286857A · kind A · utility
0Cited by
19References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D499/88
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An efficient, multistep process for the synthesis of certain 6-(1-hydroxyethyl) 2-substituted penem antibiotics from 2-[4R-(triphenylmethylthio)-3S-(1R-(dimethyl-t-butylsilyloxy)ethyl)-2-azet idon-1-yl]acetic acid esters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.