Lehmanniaside, a new cycloartane triterpene glycoside from Astragalus lehmannianus

2021 ◽  
pp. 1-6
Author(s):  
Manzura A. Agzamova ◽  
Nilufar Z. Mamadalieva ◽  
Andrea Porzel ◽  
Hidayat Hussain ◽  
Mthandazo Dube ◽  
...  
Keyword(s):  
2007 ◽  
Vol 18 (2) ◽  
pp. 161-164 ◽  
Author(s):  
Hua Han ◽  
Yang Hua Yi ◽  
Ling Li ◽  
Xiao Hua Wang ◽  
Bao Shu Liu ◽  
...  

1974 ◽  
Vol 10 (3) ◽  
pp. 336-338 ◽  
Author(s):  
V. Ya. Chirva ◽  
P. K. Kintya ◽  
V. N. Mel'nikov ◽  
V. N. Paukov
Keyword(s):  

1985 ◽  
Vol 21 (2) ◽  
pp. 197-202 ◽  
Author(s):  
V. I. Kalinin ◽  
A. I. Kalinovskii ◽  
V. A. Stonik

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.


1990 ◽  
Vol 29 (10) ◽  
pp. 3275-3280 ◽  
Author(s):  
Kazuhiro Ohtani ◽  
Chikako Miyajima ◽  
Tomoko Takahasi ◽  
Ryoji Kasai ◽  
Osamu Tanaka ◽  
...  
Keyword(s):  

Mycobiology ◽  
2012 ◽  
Vol 40 (1) ◽  
pp. 76-78 ◽  
Author(s):  
In-Kyoung Lee ◽  
Jin-Young Jung ◽  
Ji-Hee Yeom ◽  
Dae-Won Ki ◽  
Myeong-Seok Lee ◽  
...  

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