Water → HCID 23359145, compound

Participants

Reaction Steps

40 ml of a 1N-sodium hydroxide aqueous solution was added to 0.85 g of the compound 11-(2-carboxyethylthio)-2-(7-chloroquinolin-2-yl)methoxy-7-cyano-6,11-dihydrodibenz[b,e]oxepine obtained in Example 15 dissolved in 10 ml of ethanol and the mixture was refluxed under heating for 2 hours. After completion of the reaction, water was added to the residue obtained by removing the solvent, the mixture was adjusted to about pH 3 with 1N-hydrochloric acid and crystals precipitated were dissolved in ethyl acetate. The organic layer was washed with water, dried over anhydrous sodium sulfate and condensed. The resulting residue was applied to silica gel column chromatography to obtain 0.25 g of the title compound as slightly yellow powder.

Provenance & Evidence