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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2365821Generated: October 28, 2026

1-methyl-1H-pyrazol-4-amine → HCID 86696674, compound

https://huagongshe.com/reaction/2365821

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-methyl-1H-pyrazol-4-amineHCID 4770990—
ReactantHCID 71727006HCID 71727006—
Solvent(+-)-2-ButanolHCID 6568—
ProductHCID 86696674HCID 8669667426.8%

Reaction Steps

A solution of 1-methyl-1H-pyrazol-4-amine (0.054 g, 0.56 mmol) and (S)-1-(2-(tert-butyldimethylsilyloxy)-1-(4-chloro-3-fluorophenyl)ethyl)-4-(2-(methylsulfonyl)pyrimidin-4-yl)pyridin-2(1H)-one (0.060 g, 0.11 mmol) in sec-BuOH (1 mL) was heated to 120° C. in a microwave reactor for 2 hours. The reaction mixture was cooled to room temperature and concentrated. The residue was diluted with ethyl acetate and washed with H2O (2×). The organic layer was dried, filtered and concentrated. The crude product was purified by column chromatography, eluting with DCM/MeOH (25:1) to give (S)-1-(1-(4-chloro-3-fluorophenyl)-2-hydroxyethyl)-4-(2-((1-methyl-1H-pyrazol-4-yl)amino)pyrimidin-4-yl)pyridin-2(1H)-one (0.013 g, 26%). 1H NMR (400 MHz, CD3OD) δ 8.50 (d, J=5.0 Hz, 1H), 7.96 (s, 1H), 7.85 (d, J=7.0 Hz, 1H), 7.58 (s, 1H), 7.48 (m, 1H), 7.34-7.28 (m, 2H), 7.20-7.17 (m, 2H), 7.06 (m, 1H), 6.12 (m, 1H), 4.28 (m, 1H), 4.19 (m, 1H), 3.88 (s, 3H); m/z (APCI-pos) M+1=441.1, 443.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697715B2
Source datasetuspto-grants-2014_04
ORD IDord-0d165458546e4b7daab87f31c1ede1b2
Source noteuspto-grants-2014_04