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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 605868Generated: November 3, 2026

Diisopropylethylamine → 2-(1H-Benzo[d]imidazol-1-yl)-N-((R)-8-fluorochroman-4-yl)-5-nitropyrimidin-4-amine

https://huagongshe.com/reaction/605868

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant2,4-Dichloro-5-nitropyrimidineHCID 521266—
Reactant(R)-8-fluorochroman-4-amineHCID 46911919—
Reactant(R)-2-chloro-N-(8-fluorochroman-4-yl)-5-nitropyrimidin-4-amineHCID 59704905—
SolventTetrahydrofuranHCID 8028—
Product2-(1H-Benzo[d]imidazol-1-yl)-N-((R)-8-fluorochroman-4-yl)-5-nitropyrimidin-4-amineHCID 59704935—

Reaction Conditions

Temperature-78 °C

Reaction Steps

(R)-8-Fluorochroman-4-amine (60 mg) was added to a solution of 2,4-dichloro-5-nitropyrimidine (70 mg) and DIEA (0.14 mL) in THF (5 mL) at −78° C. The reaction mixture was stirred for a further 15 min at −78° C. then removed from the cold bath and allowed to warm to RT. A one molar solution of the sodium salt of benzimidazole (0.7 ml, stock solution prepared via the addition of sodium hydride to a benzimidazole solution in THF) was added to the reaction intermediate ((R)-2-chloro-N-(8-fluorochroman-4-yl)-5-nitropyrimidin-4-amine) and the resulting mixture was stirred at RT overnight. Purification via column chromatography (elution with MeOH/DCM) gave the titled compound (120 mg), MH+=407.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07915268B2
Source datasetuspto-grants-2011_03
ORD IDord-ebdd6726f1c54ef0b61f0ec2bd91efa8
Source noteuspto-grants-2011_03