반응 #159203

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Diisopropylethylamine

[4,4,4-Trifluoro-1-(2-{5-[4′-(2-pyrrolidin-2-yl-3H-imidazol-4-yl)-biphenyl-4-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-butyl]-carbamic acid methyl ester

5,5,5-Trifluoro-2-methoxycarbonylamino-pentanoic acid

HATU

→

(4,4,4-Trifluoro-1-{2-[5-(4′-{2-[1-(5,5,5-trifluoro-2-methoxycarbonylamino-pentanoyl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-butyl)-carbamic acid methyl ester

수율 23.0%

용매

dimethylformamide

dimethylformamide

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후처리

1. 1
   농축The solution was concentrated
2. 2
   기타purified by preparative reverse phase HPLC (Gemini, 15 to 50% ACN/H2O+0.1% HCO2H)

실험 절차

To a solution of crude [4,4,4-Trifluoro-1-(2-{5-[4′-(2-pyrrolidin-2-yl-3H-imidazol-4-yl)-biphenyl-4-yl]-1H-imidazol-2-yl}-pyrrolidine-1-carbonyl)-butyl]-carbamic acid methyl ester (115 mg, 0.18 mmol) in dimethylformamide (0.5 mL) was added a solution of 5,5,5-Trifluoro-2-methoxycarbonylamino-pentanoic acid (44 mg, 0.19 mmol) and HATU (72 mg, 0.19 mmol) in dimethylformamide (0.5 mL). Diisopropylethylamine (65 μL, 0.37 mmol) was then added and the reaction was stirred at room temperature for 16 hours. The solution was concentrated and purified by preparative reverse phase HPLC (Gemini, 15 to 50% ACN/H2O+0.1% HCO2H) to yield (4,4,4-Trifluoro-1-{2-[5-(4′-{2-[1-(5,5,5-trifluoro-2-methoxycarbonylamino-pentanoyl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-butyl)-carbamic acid methyl ester (35 mg, 23%). LCMS-ESI+: calculated for C40H44F6N8O6: 846.82; observed [M+1]+: 847.34. 1H-NMR: 400 MHz, (CD3OD) δ: 7.81-7.72 (m, 4H), 7.67-7.64 (m, 4H), 7.38-7.32 (m, 2H), 5.20-5.16 (m, 2H), 4.55-4.51 (m, 2H), 3.91-3.86 (m, 4H), 3.67 (s, 6H), 2.38-2.20 (m, 8H), 2.18-1.79 (m, 8H) ppm.

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