Process for preparing sulphonylpristinamycin II.sub.B
US5347001A · kind A · utility
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Key dates
| Filing date | Jan 4, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jan 4, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Method for preparing (dialkylamino-2 alkyl)sulphonyl-26 pristinamycin II.sub.B having general formula (I) ##STR1## by oxidation of (dialkylamino-2 alkyl)thio-26 pristinamycin II.sub.B with 3,5 to 20 of hydrogenperoxide equivalent, in the presence of alcaline metal tungstate, in a 2-phase medium, at a temperature between 10.degree. and 25.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.