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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 ...

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 - 23

1 H-NMR spectrum of compound PT1 (156 mg) measured in CDCl 3 HSQC spectrum of compound PT1 (156 mg) measured in CDCl 3 COSY-NMR spectrum of compound PT1 (156 mg) measured in CDCl 3 HR-FAB-MS [M] + spectrum of compound PT1 (156 mg) APPENDIX 4.2 NMR AND MS SPECTRUM DATA OF COMPOUND PT2

Status, Changes, and Composition of Plankton

Assimilation of substances in water by microorganisms. DO content depends on the process of oxygen diffusion from air into water, water temperature, biochemical processes in water, and pollution sources. This shows that DO also fluctuates seasonally, especially the source of pollution flowing into ...

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 - 24

1 H-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 13 C-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 DEPT-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 HMBC-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 HSQC-NMR spectrum of compound PT2 (50 mg) measured in ...

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