反应详情

To a solution of 2-chloro-4-trifluoromethyl-pyrimidin-5-carbonyl chloride (1.0 g, ex Maybridge) in dichloromethane (7 ml) at −2° was added a dropwise a solution of cyclopentanemethanamine hydrochloride (0.55 g) and triethylamine (1.4 ml) in dichloromethane (13 ml) and the solution stirred at 0° for 1 hour. Dichloromethane was removed under reduced pressure and ethyl acetate (20 ml) added. The solution was washed with 2N hydrochloric acid (3×15 ml), dried (MgSO4), evaporated and triturated with isohexane to afford 2-chloro trifluoromethyl-pyrimidin-5-carboxylic acid (cyclopentylmethyl)-amide (838 mg).

1. customDichloromethane was removed under reduced pressure and ethyl acetate (20 ml)
2. additionadded
3. washThe solution was washed with 2N hydrochloric acid (3×15 ml)
4. dry with materialdried (MgSO4)
5. customevaporated
6. customtriturated with isohexane