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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1806602Generated: November 3, 2026

Dimethylamine → 3-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N,N,4-trimethylbenzamide

https://huagongshe.com/reaction/1806602

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylamineHCID 674—
ReactantMethanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2733084—
Reactant3-[2-{[3-(Diethylamino)propyl]amino)-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzoic acidHCID 57434562—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
Product3-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N,N,4-trimethylbenzamideHCID 59212717103.5%

Reaction Steps

To the compound 3-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzoic acid (40 mg, 0.074 mmol) in dichloromethane (2 mL) were added HBTU (30 mg, 0.079 mmol) and dimethylamine (0.185 mL, 0.37 mmol, 2.0M soln in THF). The mixture was stirred at rt overnight. Solvent was removed by rotovap. Separation by chromatography (90% methylene chloride/7% MeOH/3% ammonia) afforded the title compound (42 mg, 99%). LC-MS m/z 549 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08354416B2
Source datasetuspto-grants-2013_01
ORD IDord-200d4e7fb01242e88a28bc8346baf994
Source noteuspto-grants-2013_01