Lawesson's reagent → HCID 86658942, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of N-methyl-2-[1-[[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinyl]-N-[(1R)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-thiazolecarboxamide (Compound 149) (273 mg, 0.5 mmol) (i.e. the product of Example 6, Step D) and 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide (202 mg, 0.5 mmol) (Lawesson's reagent) in 5 mL of toluene was heated at 100° C. for 3 days. The reaction mixture was concentrated in vacuo, and the resulting residue was dissolved in 10 mL of dichloromethane and washed with 1 M aqueous solution of potassium carbonate, and dried over magnesium sulfate. The filtered residue was concentrated in vacuo and purified by medium-pressure liquid chromatography on silica gel using 50-100% of ethyl acetate in hexanes as eluant to give 70 mg of the title compound, a compound of the present invention as a white foam.

Provenance & Evidence