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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1192406Generated: November 1, 2026

Formamide → HCID 178422981, compound

https://huagongshe.com/reaction/1192406

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
Reactant2-Amino-6-methylpyridine-3-carboxylic acidHCID 2734432—
ProductHCID 178422981HCID 17842298151.8%

Reaction Conditions

Temperature170 °C

Reaction Steps

A mixture of 2-Amino-6-methyl-nicotinic acid (1.44 g, 9.46 mmol) and formamide (8.0 g, 178 mmol) was stirred at 170° C. for 2 hours. After cooling, the mixture was quenched with water (4 mL). The precipitate was filtered, washed with water and dried to afford 7-Methyl-pyrido[2,3-d]pyrimidin-4-ol (0.79 g, 51%). 1H NMR (CDCl3, 400 MHz) δ 8.49 (d, J=8.4 Hz, 1H), 8.22 (s, 1H), 7.35 (d, J=8.0 Hz, 1H), 2.75 (s, 3H). MS (APCI+) [M+H]+162.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08680114B2
Source datasetuspto-grants-2014_03
ORD IDord-ff22f0f053b149e48bd5673727901ea3
Source noteuspto-grants-2014_03