Ethane, 2-bromo-1,1-diethoxy- → HCID 66816955, compound

Participants

Reaction Steps

Bromoacetaldehyde diethylacetal (44.2 mg, 0.224 mmol) was added to a solution of 1-(3,5-dimethyl-4-{2-[2-(4-methyl-cyclohexyl)-4-oxo-1,3,8-triaza-spiro[4.5]dec-1-ene-8-sulfonyl]-ethyl}-phenyl)-1-methyl-thiourea (100 mg, 0.187 mmol) in acetic acid (2 ml) in a nitrogen stream. The mixture was heated under reflux for two hours and then concentrated under reduced pressure. The resulting residue was diluted with dichloromethane, and the organic layer was then sequentially washed with a saturated aqueous sodium bicarbonate solution and saturated brine and dried over anhydrous magnesium sulfate. The organic layer was concentrated, and the resulting residue was then purified by silica gel column chromatography (dichloromethane-methanol) to give 8-{2-[2,6-Dimethyl-4-(methyl-thiazol-2-yl-amino)-phenyl]-ethanesulfonyl}-2-(4-methyl-cyclohexyl)-1,3,8-triaza-spiro[4.5]dec-1-en-4-one (7.1 mg).

Provenance & Evidence