反应详情

A solution of 3-oxabicyclo[3.1.0]hexane-2,4-dione (160 mg) in THF (5 ml) was treated with 1-(4-amino-3-fluoro-phenyl)-1H-pyridin-2-one (321 mg; CAS 536747-52-1, prepared according to C. F. Bigge et al., patent application WO 2003045912). The suspension was stirred over night at r.t. The solid was collected by filtration, triturated with 1N HCl (5 ml), again collected by filtration, washed with 1N HCl, H2O, then cyclohexane and dried to give (1RS,2SR)-2-[2-fluoro-4-(2-oxo-2H-pyridin-1-yl)-phenylcarbamoyl]-cyclopropanecarboxylic acid (144 mg) as off-white solid. MS: 315.3 ([M−H]−)

1. filtrationThe solid was collected by filtration
2. customtriturated with 1N HCl (5 ml)
3. filtrationagain collected by filtration
4. washwashed with 1N HCl, H2O
5. dry with materialcyclohexane and dried