Substituted azacyclohexyl derivatives of rifamycins
US5003070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Apr 26, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D498/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to novel substituted azacyclohexyl derivatives of formula ##STR1## and salts of thereof in which the structural elements --A.sub.1 -A.sub.2, --A.sub.3 -A.sub.4 -- and --A.sub.5 -A.sub.6 -- are each ethylene or vinylene or the elements --A.sub.1 -A.sub.2 -- and --A.sub.3 -A.sub.4 -- are each ethylene and --A.sub.5 -A.sub.6 -- is vinylene, X is >CR.sub.6 -- or >N-- and R.sub.6 is alkyl or hydrogen, alk is an aliphatic hydrocarbon radical or a bond, R.sub.1 is hydrogen or acyl, R.sub.2 is hydrogen or acetyl, R.sub.3 and R.sub.4 together are a bond or each is hydrogen, R.sub.5 is hydrogen, a cycloaliphatic hydrocarbon radical, aryl or heteroaryl and R.sub.7 is hydrogen or alkyl, with the proviso that when --A.sub.1 -A.sub.2 --, --A.sub.3 -A.sub.4 -- and --A.sub.5 -A.sub.6 -- are each vinylene, X is >N--, R.sub.1 is hydrogen or trialkylacetyl, R.sub.2 is hydrogen or acetyl, R.sub.3 and R.sub.4 together are a bond and alk is methylene, R.sub.5 is other than 2,6-dimethyl-4-alkylphenyl, which can be used as active ingredients in medicaments, to their preparation and use and to pharmaceutical preparations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.