Water → HCID 86743188, Verbindung

To a solution of 1.8 g of 1-(t-butyl)-10-methoxy-6-methyl-8β-hydroxymethyl-ergoline, prepared as described in Example 2,.in 20 ml of pyridine, 2.8 g of tosyl chloride in 15 ml of pyridine were slowly added. After the addition had been completed, the mixture was stirred for about six hours and was then poured into cold water and extracted with dichloromethane. The organic layer was evaporated off and the residue was chromatographed over 18 g of silica gel using dichloromethane with increasing amounts of methanol (from 0 to 4 percent) as the eluant. 2 g of 1-(t-butyl)-10-methoxy-6-methyl-8β-tosyloxymethyl-ergoline were obtained, melting at about 150 to 152° C.