Triethylamine → HCID 136404631, compound

Participants

Reaction Steps

8-Imidazol-1-yloctanoic acid hydrochloride (90.1 mg, 0.37 mmol) and triethylamine (TEA, 0.1 ml, 0.74 mmol) were dissolved in dry DMF (4 ml) and stirred for 10 min. After removing TEA under reduced pressure, 2-hydroxymethyl-5,10,15,20-tetrakis(o-pivalamidophenyl)porphyrin, 76 mg, 73 μmol), 4-(N,N-dimethylamino)pyridine (DMAP, 4.5 mg, 37 μmol) and dicyclohexylcarbodiimide (DCC, 75.4 mg, 0.37 mmol) were added to the solution and stirred for 84 hours at room temperature in darkness. The mixture was chromatographed on a silica gel flash column using CHCl3 --MeOH (30/1 v/v) as the eluent. The residue was dried at room temperature in vacuo to give a purple product, 2-(8-imidazol-1-yloctanoyloxymethyl)-5,10,15,20-tetrakis(o-pivalamidophenyl)porphyrin (80 mg, 89%).

Provenance & Evidence