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Study on botanical characteristics, chemical composition and acetylcholinesterase enzyme inhibitory effects of two species Piper thomsonii (C. DC.) Hook. f. var. thomsonii and Piper hymenophyllum Miq., Piperaceae family - 21

APPENDIX 1 CHEMICAL STRUCTURES OF COMPOUNDS ISOLATED FROM THE GENUS Piper L. STRUCTURE OF ALCALOID COMPOUNDS N 2 O O N H O 1 2 O OCH 3 3 O N O O O N O O 4 8 O OH O N N OH 5 6 O O N N O O O O O N OCH 3 O 7 N O O OH 3 C O OH 3 C OH 3 C 8 O OCH 3 O O N OH 3 C OCH 3 9 N O O H 3 CO OCH 3 OCH 3 10 O O O ...

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