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Citation:
Yang YU, Jin Ming GAO, Ji Kai LIU. Two New Oxindole Alkaloids from Ervatamia yunnanensis[J]. Chinese Chemical Letters,
;1999, 10(7): 575-578.
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Two new oxindole alkaloids, 17-demethoxy-hydroisorhynchophylline 1 and 17-demethoxv-hydroisorhynchophylline N-oxide 2, have been isolated from the aerial parts of Erva-ramin yunnanensis, and their structures were elucidated on the basis of spectroscopic analysis.
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