Halogenated 15-hydroxy-E-homoeburane derivatives
US4343738A · kind A · utility
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5Claims
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Key dates
| Filing date | Dec 16, 1980 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Dec 16, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P9/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to new, racemic or optically active, halogenated 15-hydroxy-E-homoeburnane derivatives of the formulae (Ia) and/or (Ib), ##STR1## wherein R is a C.sub.1-6 alkyl group and X is halogen, and acid addition salts thereof. These compounds are biologically active, furthermore they can be applied as intermediates in the synthesis of other pharmaceutically active substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.