Method for the synthesis of anthrapyrazolones
US5618944A · kind A · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D231/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to compounds, including 5-chloro-2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-7-[2,4,6-trimethylphen yl)methoxy]anthra[1,9-cd]pyrazol-6(2H)-one and analogs thereof, which are useful as intermediates for the synthesis of anthrapyrazolone anticancer agents, including losoxantrone. This invention also relates to methods for the synthesis of anthrapyrazolone anticancer agents, including losoxantrone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.