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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1819413Generated: October 30, 2026

1,4-Dibromobutane → HCID 178526819, compound

https://huagongshe.com/reaction/1819413

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DibromobutaneHCID 8056—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 178511544HCID 178511544—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 178526819HCID 17852681962%

Reaction Conditions

Temperature65 °C

Reaction Steps

To a solution of N4-[(trans-4-aminocyclohexyl)methyl]-5-nitro-N2-[2-(trifluoromethoxy)benzyl]-pyrimidine-2,4-diamine (86 mg, 0.2 mmol) in DMF (1 mL) were added 1,4-dibromobutane (710 μL, 0.59 mmol) and DIPEA (103 μL, 0.59 mmol). The reaction mixture was stirred at 65° C. for 4 h. The reaction mixture was then diluted with EtOAc and washed with saturated NaHCO3 and water (×4). The organic phase was dried over anhydrous Na2SO4 and concentrated in vacuo. The resulting residue was purified by silica gel preparative TLC using 10:1:0.05 CH2Cl2:MeOH:NH4OH as an eluent to afford 60 mg (62%) of the title compound as an off-white solid, m/z 493.3 [M−1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07601714B2
Source datasetuspto-grants-2009_10
ORD IDord-1cfd4d72854245ef8bdd06531a80a314
Source noteuspto-grants-2009_10