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), 5-bromothiophene-2-carboxylic acid (0.15 g, 0.73 mmol), O-(7-azabenzotriazol-1-yl-N,N,N′,N′tetramethyluronium hexafluorophospahte (0.28 g, 0.73 mmol) and triethylamine (0.20 mL, 1.4 mmol) in N,N-dimethylformamide (10 mL) gave 5-bromo-N-(1-{3-[(3,4,5-trimethoxyphenyl)amino]-1,2,4-triazin-6-yl}ethyl)thiophene-2-carboxamide (0.35 g) as a white solid. MS m/z 494, 496 (M+1, M+3).

Provenance & Evidence