.beta.-lactam compounds and production process thereof
US5191074A · kind A · utility
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3References
4Claims
0Family size
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Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing a .beta.-lactam compound of the formula ##STR1## wherein OR.sup.1 is a protected or unprotected hydroxyl group; R.sup.2 is a C.sub.1 to C.sub.7 alkyl or aryl group; from an azetidinone compound of the formula ##STR2## wherein X is an electronegative group removable through the reaction in three steps in which the second step subjects the .beta.-lactam compound obtained in the first step to silylation to convert the R.sup.2 group to the beta form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.