New oleanane-type triterpenoid saponins isolated from the seeds of Celosia argentea.
Three new oleanane-type triterpenoid saponins named celosins H, I, and J were isolated from the seeds of Celosia argentea L. Their structures were characterized as 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl-polygalagenin 28-O-β-D-glucopyranosyl ester, 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-β-D-xylcopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester, and 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-α-L-arabinopyranosyl-(1 → 3)-[β-D-xylcopyranosyl-(1 → 4)]-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester by NMR, MS, and chemical evidences, respectively. In our opinion, celosins H-J could be used as chemical markers for the quality control of C. argentea seeds.
a Beijing Institute of Radiation Medicine , Beijing , 100850 , China.
Xu
X
Pang
Hai-Xia
HX
Yan
Zhen-Fang
ZF
Wang
Miao-Xuan
MX
Fan
Yang
Y
Zhao
Xin-Tong
XT
Fu
Cheng-Qi
CQ
Xiong
Jie
J
Zhang
Bai-Ping
BP
Ma
Hong-Zhu
HZ
Guo
D034762:Celosia / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry; D013237:Stereoisomerism
D004365:Drugs, Chinese Herbal; D012503:Saponins; C587265:celosin H; C587267:celosin I; C587266:celosin J; C413246:oleanane; D009828:Oleanolic Acid