Triethylamine → 2-{1-Methyl-4-phenyl-2-[(trimethylsilyl)ethynyl]-1H-imidazol-5-yl)[1,3]thiazolo[5,4-d]pyrimidin-7-amine

Participants

Reaction Steps

2-(2-Bromo-1-methyl-4-phenyl-1H-imidazol-5-yl)[1,3]thiazolo[5,4-d]pyrimidin-7-amine (Example 26) (52 mg), PdCl2dppf (10 mg), copper(I) iodide (2 mg), trimethylsilyl acetylene (0.11 mL) and triethylamine (0.2 mL) were heated in DMF (4 mL) at 80° C. for 1 hour under an inert atmosphere. The reaction mixture was concentrated in vacuo, EtOAc (20 mL)/MeOH (0.3 mL)/water (10 mL) added and the aqueous layer removed. The organic layer was dried (MgSO4), filtered, concentrated in vacuo, then purification by flash chromatography on silica eluting with 4% MeOH/DCM gave the title compound as a light brown solid (48 mg, 100%);

Provenance & Evidence