Methanol → HCID 21883916, compound

Participants

Reaction Steps

The mixture consisting of 90 mg of methyl 1-{2-[3-(2-chloro-4,5-difluoro-benzoyl)ureido]-4-chlorophenyl}piperidine-4-carboxylate (Ex.15), 9.6 mg of lithium hydroxide, 3 ml of water, 3 ml of methanol and 3 ml of THF is allowed to stand at room temperature for 36 hours. The volatile fractions are removed at RT under reduced pressure and the remainder is adjusted to pH=4 using 2N hydrochloric acid. The precipitate formed is filtered off with suction and purified by column chromatography (silica gel, solvent: methylene chloride:methanol=9:1).

Provenance & Evidence