Lithium hydroxide, monohydrate → HCID 67265201, compound

Participants

Reaction Steps

Ethyl 2-[4-(3,3-difluorothiolan-2-ylidenemethyl)phenyl]propionate (43 mg) obtained in Example 24 was dissolved in a solution of ethanol/water (1/1, 1.0 ml), and to the solution was added lithium hydroxide monohydrate (20 mg), and the reaction mixture was stirred at room temperature for 16.5 hours. After completion of the reaction, to the reaction mixture was added 2.0 M aqueous hydrochloric acid, phase separation was performed with ethyl acetate, and the organic layer was dried over sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol=10/1) to give the title compound (33.3 mg, 85.1%).

Provenance & Evidence