Derivatives of N-iminopyridinium betaines having anti-hypertensive and salidiuretic activity and their preparation
US4563467A · kind A · utility
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5Claims
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Key dates
| Filing date | Feb 6, 1984 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Feb 6, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Derivatives of inner salts of aminopyridinium hydroxide and corresponding salts thereof comprising the general formuale I and II ##STR1## in which: R.sub.1 as selected from the group consisting of a hydrogen and a radical 2-furyl-methyl-amino; PA0 R.sub.2, R.sub.4 and R.sub.6 are all selected from the group consisting of a hydrogen atom, a C.sub.1 -C.sub.1 linear or branched lower alkyl radical and a phenyl radical; PA0 R.sub.3 is selected from the group consisting of a hydrogen or a carbamyl radical; PA0 R.sub.5 represents a hydrogen; and PA0 X.crclbar. represents a monobasic anion of a pharmaceutically acceptable acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.