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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 625764Generated: October 30, 2026

2-(difluoro(4-fluorophenyl)methyl)-7-fluoro-N-(5-methyl-1H-pyrazol-3-yl)quinazolin-4-amine → 4-Chloro-2-(difluoro(4-fluorophenyl)methyl)-7-methylquinazoline

https://huagongshe.com/reaction/625764

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(difluoro(4-fluorophenyl)methyl)-7-fluoro-N-(5-methyl-1H-pyrazol-3-yl)quinazolin-4-amineHCID 46892623—
Reactant4-Chloro-2-(difluoro(4-fluorophenyl)methyl)-7-fluoroquinazolineHCID 72942929—
Product4-Chloro-2-(difluoro(4-fluorophenyl)methyl)-7-methylquinazolineHCID 7294292713%

Reaction Steps

2-(Difluoro(4-fluorophenyl)methyl)-7-methyl-N-(5-methyl-1H-pyrazol-3-yl)quinazolin-4-amine was obtained according to the procedure described in Example 20 for preparation of 2-(difluoro(4-fluorophenyl)methyl)-7-fluoro-N-(5-methyl-1H-pyrazol-3-yl)quinazolin-4-amine, substituting 4-chloro-2-(difluoro(4-fluorophenyl)methyl)-7-fluoroquinazoline in Example 20 with 4-chloro-2-(difluoro(4-fluorophenyl)methyl)-7-methylquinazoline (13% yield). 1H NMR (300 MHz, DMSO-d6) δ 2.26 (s, 3H), 2.50 (s, 3H), 6.30 (s, 1H), 7.34 (t, 2H), 7.47 (m, 1H), 7.71-7.66 (m, 3H), 8.56 (d, 1H), 10.59 (s, 1H), 12.20 (bs, 1H); LC-MS (ESI) m/z 384 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09308207B2
Source datasetuspto-grants-2016_04
ORD IDord-5f4142ca8229453b9a76e4105d178302
Source noteuspto-grants-2016_04