Hydrochloric Acid → Methyl 3-{4-[(4-{[(4-isopropyl-1,3-thiazol-2-yl)(3-methylbutyl)amino]methyl}benzyl)oxy]phenyl}propanoate

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A mixture of 4-isopropyl-N-(3-methylbutyl)-1,3-thiazol-2-amine (313 mg), sodium hydride (60% oil, 50 mg) and N,N-dimethylformamide (5 mL) was stirred at room temperature for 1 hr. Methyl 3-(4-{[4-(chloromethyl)benzyl]oxy}phenyl)propanoate (318 mg) was added to the reaction mixture, and the mixture was stirred at room temperature for 1 hr. The reaction mixture was poured into water, acidified with 1N aqueous hydrochloric acid solution, and extracted with ethyl acetate. The ethyl acetate layer was dried using Presep Dehydration tube (manufactured by Wako Pure Chemical Industries, Ltd.), and concentrated. The residue was purified by preparative HPLC (gradient cycle A) to give the title compound (150 mg, yield 28%) as a yellow oil.

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