Triethylamine → N-((1S,2R)-2-(3-chlorophenyl)-1-(4-chlorophenyl)but-3-enyl)-N-(dicyclopropylmethyl)acrylamide

To a solution of 2.1 g (5.44 mmol) of (1S,2R)-2-(3-chlorophenyl)-1-(4-chlorophenyl)-N-(dicyclopropylmethyl)but-3-en-1-amine (Example 115, Step F) and triethylamine (1.89 mL, 13.59 mmol) in THF (30.0 mL) was added acryloyl chloride (0.66 mL, 8.15 mmol) at 0° C. The resulting reaction mixture was stirred at rt for 2 h. When LCMS indicated completion of the reaction, 100 ml of ethyl acetate was added and the combined organics were washed consecutively with water (10 ml), citric acid (10 ml, 1M), NaHCO3 solution (10 ml) and sat. NaCl solution (30 ml), dried over MgSO4, filtered and the filtrate was concentrated. The crude product was purified by flash chromatography on silica gel (eluent: hexane/ethyl acetate, 90/10 to 20/80) to give the title compound.

1. customThe resulting reaction mixture
2. additionwas added
3. washthe combined organics were washed consecutively with water (10 ml), citric acid (10 ml, 1M), NaHCO3 solution (10 ml) and sat. NaCl solution (30 ml)
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. concentrationthe filtrate was concentrated
7. customThe crude product was purified by flash chromatography on silica gel (eluent: hexane/ethyl acetate, 90/10 to 20/80)

ORD record

ord-e2f976e4473d4e289d6d4291e92f5cdf

Source dataset

uspto-grants-2016_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09296736B2