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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092591Generated: October 26, 2026

Tetrahydrofuran → 6-(5-Amino-2-methyl-phenyl)-2-[4-(4-methyl-piperazine-1-carbonyl)phenylamino]-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-one

https://huagongshe.com/reaction/2092591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
Reactant6-(2-Methyl-5-nitro-phenyl)-2-[4-(4-methyl-piperazine-1-carbonyl)phenylamino]-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-oneHCID 67329210—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product6-(5-Amino-2-methyl-phenyl)-2-[4-(4-methyl-piperazine-1-carbonyl)phenylamino]-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-oneHCID 67329058—

Reaction Steps

To a solution of 6-(2-Methyl-5-nitro-phenyl)-2-[4-(4-methyl-piperazine-1-carbonyl)phenylamino]-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-one (100 mg, 0.199 mmol) in the mixed solvent of THF (3 ml) and methanol (3 ml) was added 10% Pd/C, and the reaction mixture was stirred for 12 hours at room temperature under a hydrogen balloon. The reaction mixture was filtered and the filtrate was concentrated under vacuum to give 6-(5-Amino-2-methyl-phenyl)-2-[4-(4-methyl-piperazine-1-carbonyl)-phenylamino]-7,8-dihydro-6H-pyrido[4,3-d]pyrimidin-5-one [23] as a off white solid [Yield: 83.0 mg, 88.3%]

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440679B2
Source datasetuspto-grants-2013_05
ORD IDord-d95af720ec9a49668072adbf21274d0e
Source noteuspto-grants-2013_05