反应详情

The 4-{4,4-Dimethyl-1-[6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-pentyloxy}-benzoic acid (95 mg, 0.21 mmol), chloro-dimethoxy-triazine (CDMT) (37 mg, 0.21 mmol), and 4-methylmorpholine (25 uL, 0.23 mmol) are combined in anhydrous DCM under nitrogen. The reaction is allowed to stir under nitrogen at room temperature overnight. 3-Amino-butyric acid methyl ester (26 mg, 0.23 mmol) and 4-methylmorpholine (50 uL, 0.47 mmol) is then added to the reaction mixture, and allowed to stir at room temperature. Some water (<10% volume) is added to help solubility. The reaction is monitored by HPLC, and upon complete consumption of the acid, the reaction is diluted with DCM and water and rinsed with 1N HCl. The organic layer is washed with water and brine, dried over anhydrous sodium sulfate, then filtered and concentrated. The 3-(4-{4,4-dimethyl-1-[6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-pentyloxy}-benzoylamino)-butyric acid methyl ester is isolated after column chromatography.

1. stirringto stir at room temperature
2. customupon complete consumption of the acid
3. additionthe reaction is diluted with DCM and water
4. washrinsed with 1N HCl
5. washThe organic layer is washed with water and brine
6. dry with materialdried over anhydrous sodium sulfate
7. filtrationfiltered
8. concentrationconcentrated