Dissertation > Excellent graduate degree dissertation topics show

Study on the Chemical Constituents of Rabdosia Excisa (Maxim.) Hara

Author: HuXiaoPeng
Tutor: LiuShouJin
School:
Course: Pharmacognosy
Keywords: Labiatae Rabdosia excisa Chemical constituent
CLC: R284.1
Type: Master's thesis
Year: 2013
Downloads: 2
Quote: 0
Read: Download Dissertation

Abstract


Rabdosia excise (Maxim.) Hara is mainly distributed in Northeast region ofChina，North Korea and far east region of Russia. The whole plant is mainly used fortreatment of detoxification and stomachic. The chemical constituents andpharmacological activity of its harea was extractly concerned. The paper was reportedthe chemical constituents of the aerial parts of R. excisa.Objective: To study the chemical constituents of the aerial parts of R. excisa.Methods: The compounds were isolated and purified by silica gel columnchromatography and their structures were established on the basis of spectroscopicanalysis.Results:22compounds isolated from the aerial parts of this plant were identifiedas:2ɑ，19-dihydroxyurs-12-ene-2，3-epoxy-28-oic acid (1)， hyptadienic acid (2)，2ɑ，3β，24-trihydroxyurs-12-ene-28-oic acid (3)， ursolic acid (4)， tormentic acid(5)，2ɑ-hydroxyursolic acid (6)， euscaohic acid (7)， crategolic acid (8)， maslinicacid (9)， camaldulenic acid (10)， oleanic acid (11)， dayecrystal A (12)，acetylsventenic acid (13)， sventenic acid (14)， trichokaurin (15)， maoyerabdosin(16)， pedalitin (17)， syringic acid (18)， hexadecanioc acid (19), stigmasterol (20),β-sterol (21) and daucosterol (22).Conclusion:13compounds were found from R. excisa for the first time， exceptcompounds2、4、7、9、11、19、20、21and22.

Related Dissertations

  1. Chemical Constituents from Thladiantha Dubia Bunge.and Subergorgia Suberosa (Pallas).,R284
  2. Studies on Chemical Constituents of Dicliptera Chinensis(L.) Nees and Active Extracts of Polysaccharide on Liver Protection,R285
  3. The Dioscorea nipponia quality control and evaluation,S567.239
  4. Study on Constituents of Sclerotia and Liquid Fermentation Culture of Steroids in Mycelium of Griofla Umbellate,S567.39
  5. Chuanmutong chemical composition and quality standards of,R284
  6. False magpie kidney tree coumarin and the study of the chemical composition of the volatile oil,R284
  7. Studies on Chemical Constituents of Saponins and the Method of Determination of Caulophyllum Robustum M.,R284
  8. Tribulus terrestris saponins in the study of the chemical composition of the whole plant,R284
  9. Studies on the Alkloids of Silkworm Feces,R284.1
  10. The Preliminary Study of Chemical Constituents from Tapiscia Sinenisis Oliv.,S567.19
  11. Isolation and Structure Identification of the Chemical Constituents and Xanthine Oxidase Inhibiting Activity of Amure,R29
  12. Studies on Bioactive Constituents of Myrica Ruba Kernel and Marine Fungus Fusarium sp.,R914
  13. Study on Chemical Components and Quality Assement of Portulaca Oleracea L.,R284
  14. Chemical constituents of aromatic new tower flower,R284
  15. Study on Pholidota Chinensis Lindl Polysaccharide and Chemical Constituents of Ethyl Acetate Extraction,R284
  16. Secondary Metabolites of Mulberry Leaves,S888.2
  17. Studies on the Chemical Constituents of Stenoloma Chusana(L.) Ching,R284
  18. Studies on the Chemical Constituents of Eugenia Caryophyllata and Cimicifuga Foetida,R284.1
  19. Bioactive Constituents from Three Red Algae and Anti-diabetes Investigation of Ethanol Extraction of Rhodomela Confervoides,R285
  20. Chemical constituents and biological activity study of the two tip,R284
  21. Study on Compound Enzymes Degumming of Ramie,TS123.2

CLC: > Medicine, health > Chinese Medicine > Of Pharmacy > Traditional Chinese medicine chemical > Chemical analysis and identification
© 2012 www.DissertationTopic.Net  Mobile