Dimethylformamide → (Dimethylamino)-N,N-dimethyl(3H-(1,2,3)triazolo(4,5-b)pyridin-3-yloxy)methaniminium

Participants

Reaction Steps

In a similar manner as described for Intermediate 18, 6-(1-aminoethyl)-N-(3,4,5-trimethoxyphenyl)-1,2,4-triazin-3-amine (Intermediate 9) (0.20 g, 0.67 mmol), 3-bromothiophene-2-carboxylic acid (0.27 g, 1.3 mmol), O-(7-azabenzotriazol-1-yl-N,N,N′,N′-tetramethyluronium hexafluorophospahte (0.49 g, 1.3 mmol) and triethylamine (0.35 mL, 2.5 mmol) in N,N-dimethylformamide (10 mL) gave 3-bromo-N-(1-{3-[(3,4,5-trimethoxyphenyl)amino]-1,2,4-triazin-6-yl}ethyl)thiophene-2-carboxamide (0.24 g) as a white solid. MS m/z 494, 496 (M+1, M+3).

Provenance & Evidence