Hydrochloric Acid → HCID 9868203, compound

Participants

Reaction Steps

After adding 0.28 ml (0.56 mmol) of aqueous 2N sodium hydroxide to a solution of 41.0 mg (0.11 mmol) of the obtained sulfone compound in methanol (1.0 ml), the reaction mixture was stirred overnight. Aqueous 2N hydrochloric acid was added to the reaction mixture, extraction was performed with acetic acid ethyl ester, and the organic layer was washed with brine, dried and concentrated under reduced pressure to obtain a crude carboxyl compound. After adding 5.90 mg (0.51 mol) of 2-amino-4-methylthiazole, 9.30 mg (0.068 mmol) of 1-hydroxybenzotriazole hydrate and 13.0 mg (0.068 mol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride to a solution of 12.0 mg (0.034 mmol) of the obtained carboxyl compound in methylene chloride (0.5 ml), the mixture was stirred at room temperature overnight. The reaction mixture was concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane:acetic acid ethyl ester=1:1) to obtain the title compound as a white solid. The analysis data for the compound obtained in Production Example 1 are shown below.

Provenance & Evidence