Sodium methanethiolate → HCID 19348689, compound

Participants

Reaction Steps

200 mg (2.85 mmol) of sodium thiomethoxide were added to a solution of 278 mg (0.69 mmol) of methyl 3-[4-(3-bromopropoxy)-2-methoxyphenyl]octanoate, which was a synthetic intermediate of the compound of Preparation 50A, in 6 ml of methanol, and the resulting mixture was stirred for 1 hour. The reaction mixture was then diluted with ethyl acetate, and the diluted solution was washed several times with water and once with a saturated aqueous solution of sodium chloride, after which it was dried over anhydrous magnesium sulfate. The solvent was then removed by distillation under reduced pressure, and the resulting residue was purified by column chromatography through 50 g of silica gel, using a 1:3 by volume mixture of ethyl acetate and hexane as the eluent, to give methyl 3-[4-(3-methylthiopropoxy)-2-methoxyphenyl]octanoate containing a small amount of impurities. Oxidation of the product and subsequent treatment of the reaction mixture were conducted in a similar manner to that described in Example 21 to give 230 mg of the sulfone derivative as an oily substance in a 83% yield over the two steps. This product was hydrolyzed in a similar manner to that described in Preparation 7 to give the title compound as an oily substance.

Provenance & Evidence