No abstract

Vol. 81 priate acid chloride. The mixture was cooled, solvents evaporated almost to dryness in vacuo; water added and the gum triturated and washed with excess water yielding the desired compound in the form of its hydrochloride. Conversion of the crude salt to the free base was accomplished by slurrying in methanol solution for 10 minutes with an equal weight of silver carbonate. After filtration from silver salts and evaporation of the methanol the ester was crystallized from one of the solvents listed in B.