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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2200866Generated: October 31, 2026

Hydrochloric Acid → 2-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochloride

https://huagongshe.com/reaction/2200866

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
Reactant3-Azabicyclo[3.1.0]hexane hydrochlorideHCID 22335289—
ReactantAvanafil Impurity KHCID 86342163—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product2-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochlorideHCID 11830832572.4%

Reaction Steps

In absolute anhydrous THF (10 mL) was dissolved 4-((3-chloro-4-methoxybenzyl)amino)-2-(methylsulfinyl)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide (100 mg, 0.22 mmol). Triethylamine (0.22 g, 2.2 mmol) was added dropwisely, and 3-azabicyclo[3.1.0]hexan hydrochloride salt (42 mg, 0.35 mmol) was added. The reaction mixture was heated to reflux overnight. The solvent was removed by rotary evaporation, and water was added, followed by extraction with DCM. The organic phase was dried over sodium sulfate and purified by silica gel column chromatography (DCM/methanol=20/1 to 10/1) to give a solid. The solid was dissolved in methanol (0.05 mL), and hydrochloric acid (1 mol/L) was added. The solvent was removed to give 2-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochloride (40 mg, 39% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359371B2
Source datasetuspto-grants-2016_06
ORD IDord-e4e56d2831754b1481fcdc8987a2c0b0
Source noteuspto-grants-2016_06