1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-3{-4-[1-(4-Cyclohex-1-enylphenyl)-3-(3,5-dichlorophenyl)ureidomethyl]benzoylamino}-2-hydroxypropionic acid

Participants

Reaction Steps

4-[1-(4-Cyclohex-1-enylphenyl)-3-(3,5-dichlorophenyl)ureidomethyl]benzoic acid (130 mg, 0.26 mmol) was dissolved in DMF (2 mL), then EDAC (50 mg, 0.26 mmol) and HOBt (43 mg, 0.32 mmol) were added and the reaction mixture was stirred at room temperature for 1 hour. The above crude (S)-2,2-dimethyl-5-oxo-[1,3]dioxolan-4-ylmethylammonium trifluoroacetate was dissolved in DMF (1 mL) and added to the reaction mixture together with diisopropylethylamine (450 mg, 3.5 mmol). The mixture was stirred at room temperature for 16 hours.

Provenance & Evidence