Antiviral compositions containing bis-basic esters and amides of xanthene and xanthone
US3957986A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1973 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jul 2, 1993 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/352
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel bis-basic esters and amides of xanthene and xanthone of the formula ##SPC1## Wherein: PA1 Z is oxygen or H.sub.2 ; each of R.sup.1 and R.sup.2 is hydrogen, (lower)-alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 ring carbon atoms, alkenyl of 3 to 6 carbon atoms having the vinyl unsaturation in other than the 1-position of the alkenyl group, or each set of R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached is pyrrolidino, piperidino, N-(lower)alkylpiperazino, or morpholino; PA1 Each A is alkylene of 2 to about 8 carbon atoms and separates its adjacent Y and amino nitrogen by an alkylene chain of at least 2 carbon atoms; and each Y is oxygen, or >N--R wherein R is hydrogen or (lower)-alkyl of 1 to 4 carbon atoms; Or a pharmaceutically acceptable acid addition salt thereof. These compounds can be used as pharmaceuticals for preventing or inhibiting a viral infection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.