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

HRID 1260807Notes

Reaction equation

HRID 1260807 reaction equation
[C:1]([C:3]1[N:7]2[CH:8]=[CH:9][N:10]=[CH:11][C:6]2=[N:5][CH:4]=1)#[CH:2].[N:12]1([C:17]2[CH:18]=[C:19]([NH:27][C:28](=[O:37])[C:29]3[CH:34]=[CH:33][C:32]([CH3:35])=[C:31](I)[CH:30]=3)[CH:20]=[C:21]([C:23]([F:26])([F:25])[F:24])[CH:22]=2)[CH:16]=[CH:15][N:14]=[CH:13]1.C(N(C(C)C)CC)(C)C>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[N:12]1([C:17]2[CH:18]=[C:19]([NH:27][C:28](=[O:37])[C:29]3[CH:34]=[CH:33][C:32]([CH3:35])=[C:31]([C:2]#[C:1][C:3]4[N:7]5[CH:8]=[CH:9][N:10]=[CH:11][C:6]5=[N:5][CH:4]=4)[CH:30]=3)[CH:20]=[C:21]([C:23]([F:26])([F:25])[F:24])[CH:22]=2)[CH:16]=[CH:15][N:14]=[CH:13]1

Participants

7

Reactant 3

HCID 81531DiisopropylethylamineHCID 44222638N-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-iodo-4-methylbenzamideHCID 722072723-Ethynyl-imidazo[1,2-A]pyrazine

Product 1

HCID 16214860N-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-(imidazo[1,2-a]pyrazin-3-ylethynyl)-4-methylbenzamideYield 35.6%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of 3-Ethynylimidazo[1,2-a]pyrazine (0.075 g, 0.52 mmol), 0.245 g (0.52 mmol) of N-(3-(1H-imidazol-1-yl)-5-(trifluoromethyl)phenyl)-3-iodo-4-methylbenzamide, 0.030 g (0.026 mmol) of Pd(PPh3)4, 0.007 g (0.039 mmol) of CuI, and 0.14 mL (0.78 mmol) of diisopropylethylamine in 3.0 mL of DMF was stirred at ambient temperature overnight under an atmosphere of N2. The reaction mixture was concentrated and the crude product was purified by silica gel flash chromatography (eluted with 10% EtOAc/hexanes, then 100% EtOAc, then 10% MeOH/EtOAc) to provide 0.090 g of product as a solid: 487 m/z (M+H).

Workup

  1. concentrationThe reaction mixture was concentrated
  2. customthe crude product was purified by silica gel flash chromatography (
  3. washeluted with 10% EtOAc/hexanes

Sources & evidence

ORD record
ord-4276af879bea4471a965e5e3cdeba74d
Source dataset
uspto-grants-2013_06
Patent number
US08470851B2

Reaction notes

Loading…