New phenylpropanoid-conjugated pentacyclic triterpenoids from the whole plants of Leptopus lolonum with their antiproliferative activities on cancer cells

2021 ◽  
pp. 104628
Author(s):  
Shi-Zhou Qi ◽  
Ting Liu ◽  
Miao Wang ◽  
Xin-Xin Zhang ◽  
Yi-Ren Yang ◽  
...  
2015 ◽  
Vol 13 (3) ◽  
pp. 185-193 ◽  
Author(s):  
Oluwatosin Adaramoye ◽  
Bettina Erguen ◽  
Olubukola Oyebode ◽  
Bianca Nitzsche ◽  
Michael Höpfner ◽  
...  

2008 ◽  
Vol 3 (2) ◽  
pp. 1934578X0800300
Author(s):  
Zhongze Ma ◽  
Yoshio Hano ◽  
Feng Qiu ◽  
Gang Shao ◽  
Yingjie Chen ◽  
...  

Four lupane-type triterpenoids (1–4) and seven alkaloids (5–11) were isolated from the roots of Peganum nigellastrum. On the basis of spectroscopic and chemical evidence, the structures of the compounds were elucidated as 3α-hydroxy-27- trans-caffeoyloxylup-20(29)-en-28-oic acid methyl ester (1), 3β-hydroxy-27- trans-caffeoyloxylup-20(29)-en-28-oic acid methyl ester (2), 3α-acetoxy-27- trans-caffeoyloxylup-20(29)-en-28-oic acid methyl ester (3), 3β-acetoxy-27- trans-caffeoyloxylup-20(29)-en-28-oic acid methyl ester (4), luotonin C (5), luotonin D (6), harmine (7), harmol (8), harmaline (9), deoxyvasicinone (10) and vasicinone (11). Compounds 1, 3 and 4 are novel triterpenoids, and these pentacyclic triterpenoids were evaluated for their cytotoxicity against the androgen-sensitive LNCaP and androgen-independent PC-3 human prostate cancer cells.


2016 ◽  
Vol 7 (7) ◽  
pp. 3244-3251 ◽  
Author(s):  
Juan Liu ◽  
Yihai Wang ◽  
Rui Hai Liu ◽  
Xiangjiu He

Raisins are produced in many regions of the world and may be eaten raw or used in cooking, baking and brewing.


2021 ◽  
Vol 16 (3) ◽  
pp. 1934578X2110030
Author(s):  
Yi Liu ◽  
Wei Wang ◽  
Jian Miao

A new compound, 1,3,7,9-tetrahydroxy-6 H-dibenzo[ b, d]pyran-6-one (1), together with 6 known compounds (2-7), was isolated from the extract of whole plants of Centella asiatica. The chemical structure was elucidated on the basis of spectroscopic and mass spectrometric analyses. All the isolates were evaluated for their cytotoxicities against 4 human cancer cell lines (MCF-7, HepG2, Hela, and A549). Among them, compound 1 was found to exhibit significant cytotoxicity on MCF-7 and HepG2 cancer cells with half-maximal inhibitory concentration values of 4.1 and 7.2 µM, respectively.


2021 ◽  
Vol 9 ◽  
Author(s):  
Qingfeng Guo ◽  
Jinhua Chen ◽  
Yuwei Ren ◽  
Zhenhua Yin ◽  
Juanjuan Zhang ◽  
...  

“Diversity-enhanced extracts” is an effective method of producing chemical libraries for the purpose of drug discovery. Three rare new cytochalasan derivative chaetoglobosins B1-B3 (1–3) were obtained from chemically engineered crude broth extracts of Chaetomium madrasense 375 prepared by reacting with hydrazine monohydrate and four known metabolite chaetoglobosins (4–7) were also identified from the fungus. The structures were identified by NMR and MS analysis and electronic circular dichroism simulation. In addition, the antiproliferative activities of these compounds were also evaluated, and the drug-resistant activities of cytochalasans were evaluated for the first time. Compound 6 possessed potent activity against four human cancer cells (A549, HCC827, SW620, and MDA-MB-231), and two drug-resistant HCC827 cells (Gefitinib-resistant, Osimertinib-resistant) compared with the positive controls.


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