Diisopropylethylamine → N-(3-(2-((dimethylamino)methyl)-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyridin-3-ylethynyl)-4-methylbenzamide

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	N-(3-(2-((dimethylamino)methyl)-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamide	HCID 24826559	—
Reactant	3-Ethynylimidazo[1,2-a]pyridine	HCID 46838759	—
Catalyst	Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)	HCID 24350	—
Catalyst	HCID 178418397	HCID 178418397	—
Solvent	Dimethylformamide	HCID 6228	—
Product	N-(3-(2-((dimethylamino)methyl)-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyridin-3-ylethynyl)-4-methylbenzamide	HCID 24826712	—

Reaction Steps

To 3-ethynylimidazo[1,2-a]pyridine (0.032 g, 0.22 mmol) in anhydrous DMF (1.26 mL) was added N-(3-(2-((dimethylamino)methyl)-1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-iodo-4-methylbenzamide (prepared as in Example 3), Pd(PPh3)4 (0.013 g, 0.011 mmol), CuI (0.0032 mg, 0.0165 mmol) and DIPEA (0.064 mL, 0.44 mmol). The solution was degassed with argon for 15 minutes then stirred overnight at rt. The solvent was removed and the resultant residue was chromatographed over silica gel eluting initially with EtOAc and then with methanol/methylene chloride (5:95) to furnish the desired product: (0.07 g, 59%) MS (M+H)+542.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08470851B2
Source dataset	uspto-grants-2013_06
ORD ID	ord-c52aa50045a4482183473b0549bf50d4
Source note	uspto-grants-2013_06