Alkaloids from Portulaca oleracea L.
Five alkaloids (oleraceins A, B, C, D and E) were isolated from Portulaca oleracea L., and their structures determined by spectroscopic methods as 5-hydroxy-1-p-coumaric acyl-2,3-dihydro-1H-indole-2-carboxylic acid-6-O-beta-D-glucopyranoside, 5-hydroxy-1-ferulic acyl-2,3-dihydro-1H-indole-2-carboxylic acid-6-O-beta-D-glucopyranoside, 5-hydroxy-1-(p-coumaric acyl-7'-O-beta-D-glucopyranose)-2,3-dihydro-1H-indole-2-carboxylic acid-6-O-beta-D-glucopyranoside, 5-hydroxy-1-(ferulic acyl-7'-O-beta-D-glucopyranose)-2,3-dihydro-1H-indole-2-carboxylic acid-6-O-beta-D-glucopyranoside and 8,9-dihydroxy-1,5,6,10b-tetrahydro-2H-pyrrolo[2,1-a]isoquinolin-3-one, respectively.
Xiang
Lan
L
Department of Biological Science and Biotechnology, Laboratory of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China.
Xing
Dongming
D
Wang
Wei
W
Wang
Rufeng
R
Ding
Yi
Y
Du
Lijun
L
D000470:Alkaloids / Q000032:analysis* / Q000737:chemistry*; D015394:Molecular Structure; D031822:Portulaca / Q000737:chemistry*
D000470:Alkaloids