반응 #49234

반응 방정식

(1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-2-amino-3-(3,5-difluorophenyl)propan-1-ol

3-(((1S,2S)-1-((2R,4R)-1-(tert-butoxycarbonyl)-4-propoxypyrrolidin-2-yl)-1-(tert-butyldimethylsilyloxy)-3-(3,5-difluorophenyl)propan-2-yl)carbamoyl)benzoic acid

( A )

(2R,4R)-tert-butyl 2-((1S,2S)-1-(tert-butyldimethylsilyloxy)-2-(3-(carbamoyl)benzamido)-3-(3,5-difluorophenyl)propyl)-4-propoxypyrrolidine-1-carboxylate

N1-((1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-3-(3,5-difluorophenyl)-1-hydroxypropan-2-yl)-N3,N3-dipropylisophthalamide

3-(dipropylcarbamoyl)benzoic acid

Hunig's base

HATU

→

title compound

수율 89.0%

N1-((1R,2S)-3-(3,5-difluorophenyl)-1-hydroxy-1-((2R,4R)-4-propoxypyrrolidin-2-yl)propan-2-yl)-N3,N3-dipropylisophthalamide

수율 89.0%

용매

dichloromethane

반응 조건

후처리

1. 1
   workup.STIRRINGthe reaction mixture was stirred at rt overnight
2. 2
   기타The crude mixture was purified by silica gel Flash Chromatography (0% to 20% to 40% to 50% EtOAc/Hexane step gradient)

실험 절차

Step 4 (A): N1-((1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-3-(3,5-difluorophenyl)-1-hydroxypropan-2-yl)-N3,N3-dipropylisophthalamide. To a solution of 3-(dipropylcarbamoyl)benzoic acid (31 mg, 0.12 mmol) in dichloromethane (3 mL) were added Hunig's base (43 mg, 0.33 mmol) and HATU (54 mg, 0.143 mmol). After stirring for 20 min, the reaction mixture was added (1S,2S)-1-((2R,4R)-4-(allyloxy)-1-benzhydrylpyrrolidin-2-yl)-2-amino-3-(3,5-difluorophenyl)propan-1-ol (Preparation (C), 54 mg, 0.11 mmol) and the reaction mixture was stirred at rt overnight. The crude mixture was purified by silica gel Flash Chromatography (0% to 20% to 40% to 50% EtOAc/Hexane step gradient) to give 70 mg of the title compound (89% yield): 1H NMR (CDCl3, 500 MHz) δ 0.74 (3H, brd s), 1.00 (3H, brd s), 1.53 (2H, brd s), 1.73 (2H, brd s), 2.02-2.09 (1H, m), 2.17 (1H, d, J=10 Hz), 2.26 (1H, dd, J=5, 10 Hz), 2.68 (1H, d, J=10 Hz), 2.84 (1H, dd, J=5, 15 Hz), 2.96 (1H, dd, J=5, 15 Hz), 3.09 (1H, d, J=10 Hz), 3.16 (2H, brd s), 3.25 (1H, d, J=10 Hz), 3.49 (2H, brd s), 3.91-3.93 (2H, m), 3.96-4.11 (3H, m), 4.50 (1H, s), 4.91 (1H, d, J=10 Hz), 5.22 (1H, dd, J=5, 10 Hz), 5.31 (1H, m), 5.90-5.98 (1H, m), 6.64-6.69 (3H, m), 6.91-6.97 (3H, m), 7.15-7.20 (3H, m), 7.22-7.25 (2H, m), 7.34 (2H, d, J=5 Hz), 7.47-7.57 (4H, m). MS (ESI) (M+H)+ 710.37.

출처