Triethylamine → N-[4-[2-((S)-2-Acetylamino-4-methylsulfanyl-butyrylamino)-ethoxy]-3-(2-methyl-2H-pyrazol-3-yl)-phenyl]-3-methoxy-benzamide

Participants

Reaction Steps

(S)-2-acetamido-4-(methylthio)butanoic acid (17.8 mg, 1.25 eq), triethylamine (20.8 mL, 2.0 eq) and HATU (35.4 mg, 1.25 eq) were dissolved in 3 mL of dichloromethane and stirred at room temperature for 10 minutes. At this time N-(4-(2-aminoethoxy)-3-(1-methyl-1H-pyrazol-5-yl)phenyl)-3-methoxybenzamide hydrochloride (30 mg, 74.5 μmol) dissolved in 2.0 mL of dichloromethane was added and the reaction was stirred at room temperature for 3 hr. The solvents were evaporated under a stream of nitrogen and it was purified by HPLC. The proper fractions were collected and lyophilized to afford the title compound as a white solid in 57.3% yield. LCMS m/z (%)=540 (M+H, 100). 1H NMR (400 MHz, CDCl3) δ ppm 2.01 (s, 4 H), 2.07 (s, 3 H), 2.38-2.44 (m, 2 H), 3.46-3.65 (m, 2 H), 3.85 (s, 3 H), 3.88 (s, 3 H), 4.03-4.12 (m, 2 H), 4.45-4.53 (m, 1 H), 6.39 (d, J=2.02 Hz, 1 H), 7.02 (d, J=9.60 Hz, 1 H), 7.11 (dt, J=4.80, 2.53 Hz, 1 H), 7.38-7.42 (m, 2 H), 7.43-7.46 (m, 1 H), 7.63-7.71 (m, 2 H), 7.86 (s, 1H)

Provenance & Evidence