Process for preparing penicillanic acid derivatives
US4912213A · kind A · utility
9Cited by
2References
22Claims
0Family size
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Key dates
| Filing date | Sep 7, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a process for preparing a penicillanic acid derivative of the formula ##STR1## which comprises reacting lead with a halogenated penicillanic acid derivative of the formula ##STR2## wherein X, Y, Z and R.sup.1 are as defined in the specification. The reaction is advantageously conducted in the presence of a metal having higher ionization tendency than lead such as aluminum, iron, magnesium or a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.