Process for the preparation of fused pyridine compounds
US4895946A · kind A · utility
16Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Apr 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Pyrido[2,3-d]pyrimidine compounds are prepared through the reaction of 2,4-diamino-6(1H)-pyrimidone and an activated derivative of a dialdehyde. A typical embodiment utilizes the dinitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.