[Studies on chemical constituents from Ipomoea batatas].
OBJECTIVE
To investigate the chemical constituents of Ipomoea batatas.


METHODS
Silica gel column chromatography and Sephadex LH-20 were used to separate and purify the compounds from the EtOAc and n-BuOH soluble fraction of ethanol extracts. The chemical structures were elucidated on the basis of physic-chemical properties and spectral data.


RESULTS
Four compounds were isolated and identify as citrusin C (1), caffeicacid (2), 3,4-di-O-caffeoylquinic acid (3), 1,2,3,4-tetrahydro-beta-carboline-3-carboylic acid (4).


CONCLUSIONS
Compounds 1-4 are isolated for the first time from I. batatas.
Yin
Yong-Qin
YQ
Department of Chinese Medicine and Analysis, Guangdong Pharmaceutical University, Guangzhou 510006, China.
Shen
Zhi-Bin
ZB
Kong
Ling-Yi
LY
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D002243:Carbolines / Q000737:chemistry / Q000302:isolation & purification; D002726:Chlorogenic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D027723:Ipomoea batatas / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
D000470:Alkaloids; D002109:Caffeic Acids; D002243:Carbolines; D002726:Chlorogenic Acid; C054910:1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid; C062044:citrusinine I; C478100:3,4-di-O-caffeoylquinic acid; C040048:caffeic acid