Hydrochloric Acid → HCID 68536240, compound

Participants

Reaction Steps

(S)-1-(1,5-dimethylhexyl)-3-[7-(4-hydroxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]urea (the compound obtained in Example 255; 20 mg) was dissolved in methylene chloride (1 ml) in an argon atmosphere. Thereafter, 2-morpholin-4-ylethanol (21 mg) and triphenylphosphine (41 mg) were added to the obtained solution, and the obtained mixture was stirred at a room temperature for 30 minutes. Thereafter, the reaction solution was cooled on ice, and diethyl azodicarboxylate (27 mg) was then added thereto, followed by stirring the mixture at the same temperature for 30 minutes. The reaction solution was further stirred at a room temperature overnight. Thereafter, the reaction solution was concentrated under a reduced pressure. Thereafter, ethyl acetate (3 ml) and 1 M hydrochloric acid (3 ml) were added thereto, and the obtained mixture was separated. After the obtained water layer was washed with ethyl acetate (3 ml), an aqueous 6 M sodium hydroxide solution was added thereto to convert the solution to be alkaline. After extraction with methylene chloride (5 ml), the organic layer was washed with distilled water (5 ml×2), and the solvent was then distilled off under a reduced pressure. The residue was washed by suspension in a mixed solvent (2 ml) consisting of 50% ethyl acetate and hexane to obtain the captioned compound in the form of a free body (18 mg). Thereafter, methanol (1 ml) and 1 M hydrochloric acid (0.2 ml) were added to the obtained compound and dissolved therein, and the obtained mixture was then concentrated under a reduced pressure. The obtained residue was washed by suspension in acetone (0.5 ml) to obtained the captioned compound (17 mg).

Provenance & Evidence