Alpha-aryl-2-pyridineethanol 1-oxides and alpha-pyridinyl-2-pyridineethanol 1-oxides
US4056532A · kind A · utility
1Cited by
0References
10Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 24, 1976 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | Jun 24, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/89
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alpha-aryl-2-pyridineethanol 1-oxides and alpha-pyridinyl-2-pyridineethanol 1-oxides having the formula I or II: ##STR1## wherein R.sub.1 is hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, benzyloxy, lower alkanoyloxy, ortho-amino or ortho-lower alkylamino; R.sub.2 and R.sub.3 are each hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, benzyloxy or lower alkanoyloxy; the pharmaceutically acceptable acid addition salts thereof and a process for the preparation thereof are described. The compounds of this invention are useful in the prevention of allergic and asthmatic reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.