Diisopropylethylamine → (2-((((1R)-1-(((1R)-2-(2-Fluorophenyl)-1-(methylcarbamoyl)ethyl)methylcarbamoyl)-2-(2-naphthyl)ethyl)-methylcarbamoyl)methoxy)-1,1-dimethylethyl)carbamic Acid Tert-Butyl Ester

(2-tert-Butoxycarbonylamino-2-methylpropoxy)acetic acid (0.19 g; 0.78 mmol) was dissolved in methylene chloride (10 mL). 1-Hydroxy-7-azabenzotriazole (0.12 g; 0.86 mmol) and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.17 g; 0.90 mmol) were added and the reaction mixture was stirred for 15 min at room temperature. (2R)-N-((1R)-2-(2-Fluorophenyl)-1-(methylcarbamoyl)ethyl)-N-methyl-2-methylamino-3-(2-naphthyl)propionamide (0.33 g; 0.78 mmol) and diisopropylethylamine (0.17 mL; 0.86 mmol) were added and the reaction mixture was stirred for 12 hours at room temperature. Methylene chloride (50 mL) was added and the reaction mixture was washed with water (50 mL), an aqueous solution of sodium hydrogen sulfate (10%; 50 mL), an aqueous solution of sodium hydrogen carbonate (saturated; 50 mL), water (50 mL) and dried (magnesium sulfate). The solvent was removed in vacuo to afford 0.47 g of (2-((((1R)-1-(((1R)-2-(2-fluorophenyl)-1-methylcarbamoyl-ethyl)-methylcarbamoyl)-2-(2-naphthyl)ethyl)methyl-carbamoyl)methoxy)-1,1-dimethylethyl)carbamic acid tert-butyl ester.

1. stirringthe reaction mixture was stirred for 12 hours at room temperature
2. washthe reaction mixture was washed with water (50 mL)
3. dry with materialan aqueous solution of sodium hydrogen sulfate (10%; 50 mL), an aqueous solution of sodium hydrogen carbonate (saturated; 50 mL), water (50 mL) and dried (magnesium sulfate)
4. customThe solvent was removed in vacuo

ORD 기록

ord-a87e36fc60384539a6b06861ffc0861f

출처 데이터셋

uspto-grants-2003_04

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US06555570B2