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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1469862Generated: October 30, 2026

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

https://huagongshe.com/reaction/1469862

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-(Difluoromethyl)-5-(isobutyramidomethyl)nicotinic acidHCID 71059840—
ReactantN4-isopropylquinazoline-4,8-diamineHCID 86692303—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product2-(Difluoromethyl)-5-(isobutyramidomethyl)-N-(4-(isopropylamino)quinazolin-8-yl)nicotinamideHCID 716802284.4%

Reaction Steps

The title compound was prepared following the procedure described in Example-1 using N4-isopropylquinazoline-4,8-diamine (Intermediate-57, 100 mg, 0.50 mmol), 2-(difluoromethyl)-5-(isobutyramidomethyl)nicotinic acid (Intermediate-66, 161 mg, 0.60 mmol), oxalyl chloride (113 mg, 0.90 mmol), DMF (1 drop) and DIPEA (192 mg, 1.49 mmol) in CH2Cl2 (2 mL) to afford 10 mg of the title product. 1H NMR (300 MHz, DMSO-d6): δ 10.32 (s, 1H), 8.71 (s, 1H), 8.64 (m, 1H), 8.48 (m, 2H), 8.08 (m, 3H), 7.53 (m, 1H), 7.23 (t, J=54 Hz, 1H), 4.44 (m, 1H), 4.41 (d, 2H), 2.50 (m, 1H), 1.27 (d, J=6.9 Hz, 6H), 1.04 (d, J=7.5 Hz, 6H); MS [M+H]+: 457.47.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09006257B2
Source datasetuspto-grants-2015_04
ORD IDord-e024138fe08046e49637717465b01921
Source noteuspto-grants-2015_04