25983-76-0Relevant academic research and scientific papers
Total synthesis of isorobustin
Barton, Derek H. R.,Donnelly, Dervilla M. X.,Finet, Jean-Pierre,Guiry, Patrick J.
, p. 7449 - 7452 (1990)
The synthesis of isorobustin 1 in four steps from 5-methoxyresorcinol proceeds in an overall yield of 34%. The key step involves the arylation of a 4-hydroxy-2H-l-benzopyran-2-one 6 by 3,4-methylenedioxyphenyllead triacetate 9 in a chemoselective and regioselective manner.
Neuroregenerative Potential of Prenyl- And Pyranochalcones: A Structure-Activity Study
Aigner, Ludwig,Bieler, Lara,Couillard-Despres, Sebastien,Priglinger, Eleni,Riepl, Herbert M.,Urmann, Corinna
supporting information, p. 2675 - 2682 (2021/10/12)
Loss of neuronal tissue is a hallmark of age-related neurodegenerative diseases. Since adult neurogenesis has been confirmed in the human brain, great interest has arisen in substances stimulating the endogenous neuronal regeneration mechanism based on ad
Chromane-like cyclic prenylflavonoids for the medical intervention in neurological disorders
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Page/Page column 38, (2017/01/23)
The present invention relates to certain chromane-like cyclic prenylflavonoids, in particular the compounds of formulae (I), (II) and (III) as described and defined herein, for use in the treatment or prevention of a neurological disorder, as well as their use in promoting neuronal differentiation, neurite outgrowth and neuroprotection.
New synthetic approaches to naturally occurring and unnatural pyranoflavones
Xia, Likai,Rok Lee, Yong
, p. 644 - 650 (2013/05/09)
Total synthesis of biologically interesting natural and unnatural pyranoflavones has been accomplished starting from readily available 2,4-dihydroxyacetophenone or 2,4-dihydroxy-6-methoxyacetophenone in three steps, i.e., benzopyran formation, condensatio
Concise Synthetic Approaches to Naturally Occurring β- Hydroxypyranochalcones: First Total Synthesis of Purpurenone, Its Derivative, and Praecansone B
Wang, Xue,Lee, Yong Rok,Kim, Sung Hong
, p. 2647 - 2650 (2012/10/29)
The total synthesis of biologically interesting β- hydroxypyranochalcones, purpurenone (1), its derivative 2, praecansone B (3), and pongapinone A (4) has been accomplished starting from commercially available 2,4-dihydroxyacetophenone or 6-methoxy-2,4-di
The synthesis of morusin as a potent antitumor agent
Tseng, Tsui-Hwa,Chuang, Shien-Kai,Hu, Chao-Chin,Chang, Chia-Fu,Huang, Yu-Chao,Lin, Cheng-Wei,Lee, Yean-Jang
experimental part, p. 1335 - 1340 (2010/04/04)
Morusin, which can be isolated from Chinese herbal medicine, is achieved in which the longest linear sequence is only 13 steps in 12% overall yield from commercially available phloroglucinol. In addition, the metal/EtSH reagents for regioselective demethy
Synthesis, cytotoxicity, and antioxidative activity of minor prenylated chalcones from Humulus lupulus
Vogel, Susanne,Heilmann, Joerg
experimental part, p. 1237 - 1241 (2009/07/04)
The minor hop (Humulus lupulus) chalcones 3′-geranylchalconaringenin (3), 5′-prenylxanthohuraol (4), flavokawin (5), xanthohumol H (8), xanthohumol C (9), and 1″,2″-dihydroxanthohumol C (10) were synthesized. The non-natural chalcones 3′-geranyl-6′-O- methylchalconaringenin (2), 3′-methylflavokawin (6), and 2′-0-methyl-3′-prenylchalconaringenin (7) were also synthesized. Cytotoxicity was investigated in HeLa cells, and these compounds all had IC 50 values comparable to xanthohumol (8.2-19.2 μM). The ORAC-fluorescein assay revealed potent antioxidative activity for 7 and 8 with 5.2 and 4.8 Trolox equivalents, respectively.
Total synthesis of (±)-glyflavanone by a rigid quaternary ammonium salt
Fang, Yu-Ting,Lin, Chia-Ning,Wu, Huan-Ting,Lee, Yean-Jang
, p. 817 - 822 (2008/02/13)
Total synthesis of (±)-glyflavanones and glychalcones was accomplished starting from the known 1-(5-hydroxy-7-methoxy-2,2-dimethyl-2H- chromen-6-yl)ethanone (6). A new approach to synthesis of flavanones, based on a high yielding N-benzylcinchoninium salt
An efficient and rapid synthetic route to biologically interesting pyranochalcone natural products
Yong, Rok Lee,Wang, Xue,Xia, Likai
, p. 1420 - 1429 (2008/02/07)
An efficient and concise total synthesis of naturally occurring pyranochalcones was achieved from readily available 2,4-dihydroxyacetophenone and 2,4-dihydroxy-6-methoxyacetophenone. The key steps in the synthetic strategy were ethylenediamine diacetate-c
Concise total synthesis of biologically interesting pyranochalcone natural products: Citrunobin, boesenbergin A, boesenbergin B, xanthohumol C, and glabrachromene
Yong, Rok Lee,Xia, Likai
, p. 3240 - 3246 (2008/09/16)
New and efficient synthetic approaches to the biologically interesting natural products citrunobin, boesenbergins A and B, xanthohumol C, and glabrachromene are described. The key strategies involve ethylenediamine diacetate catalyzed benzopyran formation
