Water → HCID 86615615, compound

Participants

Reaction Steps

Carboxylic acid 63 (Example 45, 0.10 g, 0.24 mmol) and PyBOP ((Benzotriazol-1-yloxy)-tripyrrolidinophosphonium hexafluorophosphate, 0.12 g, 0.24 mmol) are dissolved in 1 mL dry DMF and stirred at room temperature for 30 min. TEA (50 μL) and tert-butyl 2-aminoethylcarbamate (48 mg, 0.3 mmol) are added. The reaction mixture is stirred for additional 3 h and poured into 50 ml of water. The product is extracted with CH2Cl2, dried over MgSO4 and purified via flash column chromatography using CH2Cl2/MeOH (20:1).

Provenance & Evidence