4-Toluenesulfonyl chloride → HCID 19848776, compound

Participants

Reaction Conditions

Reaction Steps

To 20 ml of methylene,chloride is added 346 mg (1 mmole) dl-5-hydroxy-3-[2-aminoethyl)-7-(1,1-dimethylheptyl)-2,2-dimethyl-1,2,3,4-tetrahydroquinoline and 0.166 ml (1.2 mmole) triethylamine. The solution is cooled to -20° C. and a solution of 191 mg (1 mmole) p-toluenesulfonyl chloride in 10 ml methylene chloride is added dropwise over ten minutes. The mixture is allowed to warm to 0° C., poured into ice/water and the layers separated. The aqueous layer is extracted with fresh methylene chloride, the combined organic layers washed with water, saturated sodium bicarbonate solution, brine and dried over anhydrous magnesium sulfate. Evaporation of solvent affords the crude product which is purified by chromatograpy on silica gel. In like manner the remaining amines provided in Example 66 are reacted with sulfonyl chlorides of the formula R17SO2Cl to provide compounds of the formula ##STR95## where f, R2 -R5, M, Z and W are as defined in Example 66 and R17 is as defined below.

Provenance & Evidence