反应详情

Following a procedure similar to that described above in Example 2A, when 3-hydroxy-4-(2-chloro-3-methoxy-4-methylbenzoyloxy)phenyl isopropylaminomethyl ketone is interacted with one equivalent of sodium methoxide and the resulting sodium phenolate is reacted with 3,3-dimethylheptadecanoyl chloride there is obtained 3-(3,3-dimethylheptadecanoyloxy)-4-(2-chloro-3-methoxy-4-methylbenzoyloxy)phenyl isopropylaminomethyl ketone; and by interaction of this base with hydrochloric acid there is obtained the hydrochloride salt. When this hydrochloride is catalytically hydrogenated, using a procedure similar to that described above in Example 2B, there is obtained 3-(3,3-dimethylheptadecanoyloxy-4-(2-chloro-3-methoxy-4-methylbenzoyloxy)-alpha-(isopropylaminomethyl)benzyl alcohol hydrochloride.