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Constituents of the seeds of Swietenia mahagoni Jacq. I. Isolation, structures, and 1H- and 13C-nuclear magnetic resonance signal assignments of new tetranortriterpenoids related to swietenine and…
Eighteen new tetranortriterpenoids were isolated from the cotyledons of Swietenia mahagoni (Meliaceae) along with the known tetranortriterpenoids. Among them, the structures of wight new compounds,… Expand
Constituents of the seeds of Swietenia mahagoni Jacq. II. Structures of swietemahonin A, B, C, D, E, F, and G and swietemahonolide.
Eight new tetranortriterpenoids, swietemahonin A-G and swietemahonolide, were isolated from the cotyledons of seeds of Swietenia mahagoni. The structures 1-8 are proposed for these compounds,… Expand
Constituents of the seeds of Swietenia mahagoni JACQ. III. Structures of mahonin and secomahoganin.
Two new tetranortriterpenoids, mahonin and secomahoganin, have been isolated from the cotyledons of seeds of Swietenia mahagoni. The structures of these compounds were determined by the use of… Expand
METHYL GALLATE FROM JIRINGA (ARCHIDENDRON JIRINGA) AND ANTIOXIDANT ACTIVITY.
Objective: This research was study about phytochemical active phenolic compound from pods of jiringa (Archidendron jiringa (Jack) I. C. Nielsen) and it’s antioxidant. Methods: Pods of jiringa were… Expand
Antagonists of platelet activating factor from Swietenia mahogani (L.) Jacq
Abstract The structures of swietemahonin A (1), E (2), and 3-acetylswietenolide (3), isolated as antagonists of platelet activating factor from the ether extract of Swietenia mahogani (L.) Jacq.,… Expand
MAHONIN AND SECOMAHOGANIN, NEW TETRANORTRITERPENOIDS FROM SWIETENIA MAHOGANI (L.) JACQ
Two new tetranortriterpenoids, mahonin and secomahoganin, have been isolated from the cotyledons of Swietenia mahogani and their structures have been determined by means of 2-D NMR spectroscopy.
Isolation and Identification of Flavonoid Compound from Nutmeg Leaves (Myristica fragrans Houtt)
Antioxidants Activity of the Kecombrang Flower (Etlingera elatior) Extract by using 1.1-diphenyl-2-picrilhidrazyl (DPPH) Method
Morphology of bacterial cellulose-Curcuma longa Linn from acetobacter xylinum for wound healing
Bacterial cellulose- Curcuma Longa Linn from acetobacter xylinum has been produced. The aim of research: To isolate Bacterial Cellulose-Curcuma Longa Linn from Acetobacter xylinum and to improve… Expand
Improvement of Purity Silicon Obtained from Natural Sand by Antioxidant and Antimicrobial Activities from Leaves of Coleus atropurpureus Benth
Research results showed that leaves extracts of C. atropurpureus Benth possess strong antioxidant and antimicrobial properties. Expand