1-Substituted-2-disubstitutedamino-pyrido[2,3-D]pyrimidin-4(1H)-ones
US3931183A · kind A · utility
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10Claims
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Key dates
| Filing date | Jul 24, 1974 |
| Grant date | Jan 6, 1976 |
| Priority date | — |
| Expiry date | Jul 24, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Anti-histaminics of the formula ##SPC1## Wherein R.sub.1 is alkyl, alkenyl or phenalkyl, R.sub.2 and R.sub.3 are alkyl or alkenyl and R' is optional are prepared by alkylating or alkenylating a 1-substituted-2-monosubstituted-amino pyrido 2,3-d pyrimidin-4(1H)-one with an alkyl halide or alkenyl halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.