反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: Step 8 (A): (2R,4R)-tert-butyl 2-((1S,2S)-1-(tert-butyldimethylsilyloxy)-3-(3,5-difluorophenyl)-2-(3-((R)-2-(methoxymethyl)pyrrolidine-1-carbonyl)-5-methylbenzamido)propyl)-4-propoxypyrrolidine-1-carboxylate. To a solution of 3-(((1S,2S)-1-((2R,4R)-1-(tert-butoxycarbonyl)-4-propoxypyrrolidin-2-yl)-1-(tert-butyldimethylsilyloxy)-3-(3,5-difluorophenyl)propan-2-yl)carbamoyl)-5-methylbenzoic acid (Preparation G, 28 mg, 0.038 mmol) in dichloromethane (1 mL) was added Hunig's base (14 mg, 0.114 mmol) to make a clear solution and HATU (19 mg, 0.05 mmol) was then added. After stirring for 20 min, the reaction mixture was added (R)-2-(methoxymethyl)pyrrolidine (65 mg, 0.057 mmol) and the reaction mixture was stirred at rt overnight. Ethyl acetate (100 mL) was added and the mixture was washed with Brine, H2O, dried and concentrated to give 30 mg of the title compound (95% yield): 1H NMR (CDCl3, 500 MHz) δ ppm 0.01 (3H, s), 0.06 (3H, s), 0.85 (9H, s), 0.88 (3H, t, J=5 Hz), 1.48-1.54 (11H, m), 1.73 (1H, m), 1.92-2.09 (5H, m), 2.18 (1H, m), 2.38 (3H, s), 2.62 (1H, m), 2.96 (1H, m), 3.05 (1H, m), 3.26-3.39 (5H, m), 3.47 (1H, m), 3.58 (1H, m), 3.68 (1H, m), 3.76 (1H, dd, J=5, 15 Hz), 3.97 (1H, m), 4.04-4.07 (1H, m), 4.11-4.14 (1H, m), 4.41 (1H, brd s), 4.56 (1H, m), 6.59 (1H, m), 6.76 (1H, s), 6.77 (1H, s), 7.43 (1H, s), 7.72 (1H, s), 7.74 (1H, s), 7.98 (1H, brd s). MS (ESI) (M+H)+ 788.61.
was then added
the reaction mixture was stirred at rt overnight
the mixture was washed with Brine, H2O
dried
concentrated
来源 ID: ord-863a97789005496785d13f2011133345