sodium hydroxide; tetrabutylammomium bromide in water; ethyl acetate; acetone; toluene
参考文献
MERCK and CO. INC.
Patent: EP431972 A2, 1991 ;
EP 0431972 A2
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MERCK and CO. INC.
Patent: EP518675 A2, 1992 ;
EP 0518675 A2