Methylamine → HCID 86609859, compound

Participants

Reaction Conditions

Reaction Steps

Thionyl chloride (0.238 g, 2 mmol) was added dropwise to a mixture of {4 -[7-(4-cyano-3-trifluoromethylphenyl)-8-oxo-6-thioxo-5,7-diaza-spiro[3.4]oct-5-yl]phenyl}acetic acid (46c) (0.357 g, 0.777 mmol) in THF (5 ml) cooled to 0° C. The mixture was stirred for 1 hour at room temperature and then methylamine (0.5 ml) was added into the mixture. The mixture was stirred for an additional 2 hours. The medium was filtered and the filtrate was concentrated and chromatographed (dichloromethane:acetone, 80:20) to yield N-methyl-2-{4-[7-(4 -cyano-3-trifluoromethylphenyl)-8-oxo-6-thioxo-5,7-diaza-spiro[3.4]oct-5-yl]phenyl}acetamide (46e) [RD149] (0.348 g, 0.738 mmol, 95%), the structure of which is illustrated in Formula 18, as an off-white powder.

Provenance & Evidence