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Chemical study and identification of some groups of substances in the red-top tree (cratoxylum prunifolium kurtz) - 14 -
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 -
Study on chemical composition, toxicity and some biological effects supporting the treatment of gastric and duodenal ulcers of Sanchezia nobilis Hook.F. leaves - 2 -
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 -
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

1 H –NMR spectrum of β - Sitosterol









