Derivatives of 10-nitro-7-oxo-7H-indolizino[7,6,5-de]isoquinoline
US4137315A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Jun 14, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D217/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Indolizino[7,6,5-de]isoquinoline derivatives of the general formula: ##STR1## wherein the symbol R.sub.1 represents a hydrogen atom, the symbol R.sub.2 represents a hydrogen atom, an amino radical, or a straight- or branched-chain alkyl radical which is optionally substituted on a terminal carbon atom by a vinyl, ethynyl, carboxy, alkoxycarbonyl, cyano, dialkoxymethyl, hydroxymethyl, dialkylaminomethyl (the alkyl radicals of which may form with the nitrogen atom to which they are attached a saturated five- or six-membered heterocyclic ring which may contain another hetero-atom selected from nitrogen, oxygen and sulphur, and -- when a second nitrogen atom is present -- may optionally be N-methylated) or trialkylammoniomethyl radical, or R.sub.2 represents a straight- chain alkyl radical which is substituted on the terminal carbon atom by an aminomethyl, alkylaminomethyl or hydroxyalkylaminomethyl radical, and the symbols R.sub.3 and R.sub.4 together form a valence bond, or the symbols R.sub.1 and R.sub.4 together form a valence bond and the symbols R.sub.2 and R.sub.3 together form a grouping of the general formula: ##STR2## wherein the group --OR.sub.5, which represents an alkoxy r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.