Diisopropylethylamine → N-tert-butoxycarbonyl-N-(2-pyridinylmethyl)-N'-(1-(2-trimethylsilylethoxymethyl)-1H-benzimidazol-2-ylmethyl)-N'-(8-methyl-5,6,7,8-tetrahydro-8-quinolinyl)-1,4-benzenedimethanamine

Participants

Reaction Steps

Reaction of N-tert-Butoxycarbonyl-N-(2-pyridinylmethyl)-N′-(8-methyl-5,6,7,8-tetrahydro-8-quinolinyl)-1,4-benzenedimethanamine (120 mg, 0.26 mmol), 2-chloromethyl-1-(2-trimethylsilylethoxymethyl)-1H-benzimidazole (234 mg, 0.79 mmol) and diisopropylethylamine (229 uL, 1.31 mmol) in DMF (2.6 mL) for 18 h at 90° C. followed by purification of the crude material by radial chromatography (2 mm plate, 20:2:1 CHCl3-MeOH—NH4OH) afforded 90 mg (48%) of N-tert-butoxycarbonyl-N-(2-pyridinylmethyl)-N′-(1-(2-trimethylsilylethoxymethyl)-1H-benzimidazol-2-ylmethyl)-N′-(8-methyl-5,6,7,8-tetrahydro-8-quinolinyl)-1,4-benzenedimethanamine as a colourless oil.

Provenance & Evidence