Tropane alkaloids from Erythroxylum emarginatum
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A tropane alkaloid, anhydroecgonine methyl ester N-oxide (2), was isolated for the first time as a naturally occurring compound, with anhydroecgonine methyl ester (1) from the bark of Erythroxylum emarginatum. Compound 1 was also isolated from the twigs. Their structures were elucidated mainly by spectroscopic methods.
KeywordsErythroxylum emarginatum Tropane alkaloid Anhydroecgonine methyl ester N-oxide Anhydroecgonine methyl ester