SEARCH Articles Figures Tables A-Ecgonine Benzoyl Ester of Ecgonine Using Benzoic Anhydride Benzoyl ecgonine Benzoyl-Z-ecgonine Ecgonin methyl ester Ecgonine Ecgonine Ecgonine benzoate methyl ester Ecgonine methyl ester Ecgonines Ecgonines Ecgoninic acid Methyl ecgonine Z-Ecgonine