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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1469864Generated: October 30, 2026

Oxalyl chloride → 2-(Difluoromethyl)-5-(isobutyramidomethyl)-N-(4-((2,2,2-trifluoroethyl)amino)quinazolin-8-yl)nicotinamide

https://huagongshe.com/reaction/1469864

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-(Difluoromethyl)-5-(isobutyramidomethyl)nicotinic acidHCID 71059840—
ReactantN4-(2,2,2-trifluoroethyl)quinazoline-4,8-diamineHCID 86692308—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product2-(Difluoromethyl)-5-(isobutyramidomethyl)-N-(4-((2,2,2-trifluoroethyl)amino)quinazolin-8-yl)nicotinamideHCID 716802315%

Reaction Steps

The title compound was prepared following the procedure described in Example-1 using N4-(2,2,2-trifluoroethyl)quinazoline-4,8-diamine (Intermediate-65, 48 mg, 0.20 mmol), 2-(difluoromethyl)-5-(isobutyramidomethyl)nicotinic acid (Intermediate-66, 107 mg, 0.40 mmol), oxalyl chloride (50 mg, 0.40 mmol), DMF (1 drop) and DIPEA (127 mg, 0.99 mmol) in CH2Cl2 (2 mL) to afford 5 mg of the title product. 1H NMR (300 MHz, DMSO-d6): δ 10.40 (s, 1H), 8.95 (t, 1H), 8.71 (d, 1H), 8.61 (s, 1H), 8.48 (t, 1H), 8.07 (m, 2H), 7.65 (t, 1H), 7.41-7.05 (t, J=54.0 Hz, 1H), 4.42 (m, 4H), 2.50 (m, 1H), 1.05 (d, J=7.2 Hz, 6H); MS [M+H]+: 497.52.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09006257B2
Source datasetuspto-grants-2015_04
ORD IDord-21dc574596db4747837973489770f13d
Source noteuspto-grants-2015_04