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2021 ◽  
Author(s):  
Lucas K. Johnson ◽  
Scott W. Niman ◽  
Darius Vrubliauskas ◽  
Christopher D. Vanderwal

Fitoterapia ◽  
2021 ◽  
pp. 105101
Author(s):  
Chao Wang ◽  
Lirong Wang ◽  
Jilong Wang ◽  
Yu-Peng Li ◽  
Jun-Sheng Zhang ◽  
...  

2021 ◽  
Vol 190 ◽  
pp. 112863
Author(s):  
Hien T.N. Le ◽  
Elias Van Roy ◽  
Ella Dendooven ◽  
Laura Peeters ◽  
Mart Theunis ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5381
Author(s):  
Songsong Jing ◽  
Zhuo Qu ◽  
Chengcheng Zhao ◽  
Xia Li ◽  
Long Guo ◽  
...  

The investigation of the constituents of the rhizomes of Dioscorea collettii afforded one new dihydroisocoumarin, named (−)-montroumarin (1a), along with five known compounds—montroumarin (1b), 1,1′-oxybis(2,4-di-tert-butylbenzene) (2), (3R)-3′-O-methylviolanone (3a), (3S)-3′-O-methylviolanone (3b), and (RS)-sativanone (4). Their structures were elucidated using extensive spectroscopic methods. To the best of our knowledge, compound 1a is a new enantiomer of compound 1b. The NMR data of compound 2 had been reported but its structure was erroneous. The structure of compound 2 was revised on the basis of a reinterpretation of its NMR data (1D and 2D) and the assignment of the 1H and 13C NMR data was given rightly for the first time. Compounds 3a–4, three dihydroisoflavones, were reported from the Dioscoreaceae family for the first time. The cytotoxic activities of all the compounds were tested against the NCI-H460 cell line. Two dihydroisocoumarins, compounds 1a and 1b, displayed moderate cytotoxic activities, while the other compounds showed no cytotoxicity.


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