反应详情

To a stirred solution of 3-Isoxazolecarboxylic acid (0.015 g, 0.13 mmol), and triethylamine (0.1 mL, 0.72 mmol) in dichloromethane (2 mL) was added HATU (0.05 g, 0.13 mmol). The resulting mixture was stirred 20 minutes. To this mixture was added 36-4 (0.03 g, 0.10 mmol) and the resulting mixture was stirred room temperature overnight. The mixture was washed with water and concentrated. Flash column separation using a 0-60% ethyl acetate/hexane gradient, followed by 10-90% reverse phase gradient gave 36-5. (0.017 g, 43%). HRMS (M+H)+: observed=386.2189, calculated=386.2187

1. stirringthe resulting mixture was stirred room temperature overnight
2. washThe mixture was washed with water
3. concentrationconcentrated
4. customFlash column separation
5. customgave 36-5