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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1505688Generated: November 2, 2026

Hydrochloric Acid → HCID 178519155, compound

https://huagongshe.com/reaction/1505688

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant2-[4-(4-Iodo-pyrazol-1-yl)-cyclohexylamino]-ethanolHCID 89924440—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventChloroformHCID 6212—
ProductHCID 178519155HCID 17851915523.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

Di-imidazol-1-yl-methanone (1.32 g; 8.14 mmol; 2.9 eq.) was added in one portion to a solution of 2-[4-(4-Iodo-pyrazol-1-yl)-cyclohexylamino]-ethanol (intermediate 25; 997 mg; 2.83 mmol; 1.0 eq.) and Dimethyl-pyridin-4-yl-amine (60 mg; 0.49 mmol; 0.17 eq.) in CHCl3 (30 mL). The reaction suspension was heated at 60° C. for 20 min then cooled and poured into a 1 N HCl solution. It was extracted with DCM (twice), combined organic phases were washed with brine, dried over magnesium sulfate, filtered and concentrated. Purification by flash chromatography on silica (DCM: MeOH; 96:4) followed by a trituration in Acetonitrile afforded the title compound as a white solid (239 mg; 23%). 1H NMR (300 MHz, DMSO) δ 7.96 (d, J=0.5 Hz, 1H), 7.51 (d, J=0.5 Hz, 1H), 4.30-4.12 (m, 3H), 3.63-3.46 (m, 3H), 2.11-2.00 (m, 2H), 1.91-1.58 (m, 6H). HPLC (Condition A): Rt 2.98 min (purity 99.0%). MS (ESI+): 362.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09216991B2
Source datasetuspto-grants-2015_12
ORD IDord-8528fd4946944daf86d6694aaafbccf1
Source noteuspto-grants-2015_12