Pyrido (4,3-B) carbazoles substituted in the 1 position by a polyamine chain
US4434290A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | May 1, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/88
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The novel derivatives correspond to the general formula: ##STR1## in which R.sub.1 is a Y--(CH.sub.2).sub.n --NR.sub.4 R.sub.5 group, where Y represents a single bond or the group ##STR2## R.sub.4 and R.sub.5, identical or different, are hydrogen or an alkyl radical, preferably a lower alkyl, or again form together a ring which can include heteroatoms, in particular nitrogen atoms. n is a number ranging from 1 to 10, notably from 2 to 7, R.sub.2 is a hydrogen atom, a lower alkyl group or an aralkyl group in which the alkyl substituent is a lower alkyl group, and R.sub.3 is a hydrogen atom or a CH.sub.3 group useful for the treatment of leukemias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.