Novel stereoisomeric component A of stereoisomeric mixtures of 2'-unsymmetrical 16,17-methylenedioxy steroid 21-acylates, compositions thereof, and method of treating therewith
US3996359A · kind A · utility
18Cited by
2References
61Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 6, 1975 |
| Grant date | Dec 7, 1976 |
| Priority date | — |
| Expiry date | Nov 6, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for the resolution of stereoisomeric mixtures of certain steroids obtained by synthesis into its components, comprising subjecting the stereoisomeric mixture to gel filtration, the components in view of different retention volumes being separated and being separately recoverable; and stereoisomeric components A and B thereby obtained, pharmaceutical compositions thereof; and method of treating inflammation therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.