title: [Study on the chemical constituents from the ethyl acetate extracts of Cremastra appendiculata].
abstract: OBJECTIVE
  To study the chemical constituents from the ethyl acetate extracts of Cremastra appendiculata.
  
  
  METHODS
  The compounds from the ethyl acetate extracts were isolated by the silica gel column and Sephadex LH-20 column chromatography, their structures were elucidated by the spectral analysis and chemical evidence.
  
  
  RESULTS
  Seven componds were separated and identified as fumaric acid (1), dimethylhexyl phthalate (2), L-pyroglutamic acid (3), 2-furoic acid (4), vanillic acid (5), p-coumaric acid (6), protocatechuic acid (7).
  
  
  CONCLUSIONS
  Compounds 1 to 6 are obtained from this plant for the first time.
authors.affiliation: College of Life Science, Guizhou University, Guiyang 550025, China. yaozhang522@163.com
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhang
authors.forename: Bo
authors.initials: B
authors.lastname: Huang
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zhao
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhou
mesh_terms: D000085:Acetates / Q000737:chemistry; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D005650:Fumarates / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D010795:Phthalic Acids / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D011422:Propionates; D011761:Pyrrolidonecarboxylic Acid / Q000737:chemistry / Q000302:isolation & purification*; D014641:Vanillic Acid / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000085:Acetates; D003373:Coumaric Acids; D005650:Fumarates; D005663:Furans; D010795:Phthalic Acids; D011422:Propionates; C007650:ethyl acetate; C032005:fumaric acid; D014641:Vanillic Acid; C495469:p-coumaric acid; C060089:2-furoic acid; D011761:Pyrrolidonecarboxylic Acid