1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 178472069, compound

Participants

Reaction Conditions

Reaction Steps

4-[1-(cis-4-tert-Butylcyclohexyl)-3-(4-trifluoromethoxyphenyl)ureidomethyl]benzoic acid (0.3 g, 0.6 mmol), 1-hydroxybenzotriazole (0.1 g, 0.7 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (0.13 g, 0.7 mmol) were dissolved in DMF (10 mL). Diisopropylethylamine (0.1 g, 0.7 mmol) and 3-aminopropionic acid ethyl ester, hydrochloride (0.07 g, 0.7 mmol) in DMF was added and the reaction mixture was stirred for 16 hours at 20° C. Ethyl acetate (80 mL) and water (50 mL) were added and the organic phase isolated. The aqueous phase was extracted with ethyl acetate (50 mL) and the organic phases combined, dried (MgSO4) and concentrated in vacuo. The residue was crystallised from heptane and ethyl acetate (4:1) to give 3-{4-[1-(cis-4-tert-butylcyclohexyl)-3-(4-trifluoromethoxy-phenyl)ureidomethyl]benzoylamino}propionic acid ethyl ester.

Provenance & Evidence