Diisopropylethylamine → HCID 71582309, compound

Participants

Reaction Steps

To a stirred solution of the ((S)-4-(1-((R)-1-(2,4-dichlorophenyl)ethyl)-1H-indazol-6-yl)piperazin-2-yl)methanol (0.072 g, 0.18 mmol) and (R)-1-(t-butoxycarbonyl)pyrrolidine-2-carboxylic acid (0.078 g, 0.36 mmol) in dichloromethane (2.0 mL) was added HATU (0.14 g, 0.36 mmol) and iPr2NEt (0.10 mL, 0.57 mmol). The reaction mixture was stirred at room temperature for 30 min, and was then diluted with dichloromethane. The mixture was washed with deionized water, and the aqueous layer was extracted with dichloromethane (2×15 mL). The combined organic layers were dried (Na2SO4), filtered, and concentrated in vacuo. The crude product was purified by flash chromatography (SiO2, 30-100% ethyl acetate in hexanes) to afford the desired product (0.072 g, 0.12 mmol, 30% for 2 steps).

Provenance & Evidence