Antitumor glycosides, their preparation and use
US4276289A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1980 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Mar 17, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Anthracycline glycosides of the formula I ##STR1## wherein R is hydrogen or hydroxyl and the hydrochlorides thereof, and which are useful in treating certain mammalian tumors, are prepared by condensing daunomycinone with the novel sugar, 4-O-methyl-2,3,6-trideoxy-3trifluoroacetamidoribohexopyranosyl chloride in an inert organic solvent and in the presence of a soluble silver salt and a dehydrating agent to form 3', 4' -diepi-4'-O-methyl-N-trifluoroacetyl daunorubicin, and removing the N-trifluoroacetyl group therefrom. This gives the compound wherein R is hydrogen. The former is converted to the corresponding hydroxyl compound by conventional means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.