Molecular basis for fungicidal action of neothyonidioside, a triterpene glycoside from the sea cucumber, Australostichopus mollis

2012 ◽  
Vol 8 (3) ◽  
pp. 902 ◽  
Author(s):  
Ploi Yibmantasiri ◽  
Dora C. Leahy ◽  
Bede P. Busby ◽  
Stephan Andreas Angermayr ◽  
Alice G. Sorgo ◽  
...  
2007 ◽  
Vol 18 (2) ◽  
pp. 161-164 ◽  
Author(s):  
Hua Han ◽  
Yang Hua Yi ◽  
Ling Li ◽  
Xiao Hua Wang ◽  
Bao Shu Liu ◽  
...  

2016 ◽  
Vol 11 (6) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Alexandra S. Silchenko ◽  
Anatoly L Kalinovsky ◽  
Sergey A. Avilov ◽  
Pelageya V. Andryjaschenko ◽  
Pavel S. Dmitrenok ◽  
...  

The unusual non-holostane triterpene glycoside, colochiroside E (1) was isolated from the sea cucumber Colochirus robustus (Cucumariidae, Dendrochirotida). The structure of 1 was established by analysis of ID, 2D NMR and HRESI MS data. Colochiroside E (1) belongs to a rare group of glycosylated 9β-H-lanosta-18(16)-lactones and has an unprecedented sulfated trisaccharide carbohydrate chain consisting of two glucose and one xylose units. In contrast with (9β-H)-7(8)-unsaturated holostane glycosides, the 7(8)-double bond in the having (9β-H)-configuration aglycone of colochiroside E is not capable of migration into the 8(9)- and then into the 9(11)-position on treatment with HC1. The formation of a chlorine derivative of 1 was observed under these conditions.


1998 ◽  
Vol 76 (2) ◽  
pp. 137-141
Author(s):  
Sergey A Avilov ◽  
Olga A Drozdova ◽  
Vladimir I Kalinin ◽  
Anatoly I Kalinovsky ◽  
Valentin A Stonik ◽  
...  

Frondoside C (1) is a new sulfated nonholostane triterpene glycoside obtained (with the glycosides closed by aglycone structure as impurities) from the sea cucumber Cucumaria frondosa. Its structure has been elucidated on the basis of spectral data (NMR and MS) of compound 1 and of its desulfated derivative (2) obtained by solvolysis. Frondoside C (1) is just the seventh glycoside reported from sea cucumbers, having a lanostane-type aglycone devoid of the typical 18(20)- lactone ring.Key words: Cucumaria frondosa, sea cucumbers, frondosides, triterepene glycosides, antitumor activity.


Marine Drugs ◽  
2020 ◽  
Vol 18 (11) ◽  
pp. 557 ◽  
Author(s):  
Alexander N. Shikov ◽  
Elena V. Flisyuk ◽  
Ekaterina D. Obluchinskaya ◽  
Olga N. Pozharitskaya

Marine organisms represent an excellent source of innovative compounds that have the potential for the development of new drugs. The pharmacokinetics of marine drugs has attracted increasing interest in recent decades due to its effective and potential contribution to the selection of rational dosage recommendations and the optimal use of the therapeutic arsenal. In general, pharmacokinetics studies how drugs change after administration via the processes of absorption, distribution, metabolism, and excretion (ADME). This review provides a summary of the pharmacokinetics studies of marine-derived active compounds, with a particular focus on their ADME. The pharmacokinetics of compounds derived from algae, crustaceans, sea cucumber, fungus, sea urchins, sponges, mollusks, tunicate, and bryozoan is discussed, and the pharmacokinetics data in human experiments are analyzed. In-depth characterization using pharmacokinetics is useful for obtaining information for understanding the molecular basis of pharmacological activity, for correct doses and treatment schemes selection, and for more effective drug application. Thus, an increase in pharmacokinetic research on marine-derived compounds is expected in the near future.


2015 ◽  
Vol 10 (2) ◽  
pp. 1934578X1501000
Author(s):  
Jia-Jia Zhang ◽  
Qi-Ke Zhu ◽  
Jun Wu ◽  
Hui-Wen Zhang

A new cytotoxic triterpene glycoside named nobiliside E (1) has been obtained from the East China Sea cucumber Holothuria nobilis Selenka. Its structure was determined on the basis of NMR spectroscopic and MS analyses, together with chemical evidence. The new compound showed significant cytotoxicity to eight human tumor cell lines with IC50 values in the range of 0.53–4.06 μg/mL.


1983 ◽  
Vol 61 (7) ◽  
pp. 1465-1471 ◽  
Author(s):  
François-Xavier Garneau ◽  
Jean-Luc Simard ◽  
Odette Harvey ◽  
John W. Apsimon ◽  
Michel Girard

The isolation of the major triterpene glycoside from the sea cucumber Psolusfabricii obtained from the north shore of the St. Lawrence estuary is described. Versatile extraction and purification procedures were used and physico-chemical data is presented in support of structure 1 for psoluthurin A.


ChemInform ◽  
2007 ◽  
Vol 38 (24) ◽  
Author(s):  
Peng Sun ◽  
Bao-Shu Liu ◽  
Yang-Hua Yi ◽  
Ling Li ◽  
Min Gui ◽  
...  

ChemInform ◽  
2007 ◽  
Vol 38 (13) ◽  
Author(s):  
Jun Wu ◽  
Yang-Hua Yi ◽  
Hai-Feng Tang ◽  
Zheng-Rong Zou ◽  
Hou-Ming Wu

ChemInform ◽  
2010 ◽  
Vol 33 (12) ◽  
pp. no-no
Author(s):  
Ana P. Murray ◽  
Claudia Muniain ◽  
Alicia M. Seldes ◽  
Marta S. Maier

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