13252-83-0Relevant articles and documents
Design, synthesis and antifungal activity of coumarin ring-opening derivatives
Zhang, Ming-Zhi,Zhang, Yu,Wang, Jia-Qun,Zhang, Wei-Hua
, (2016)
Based on our initial design, we synthesized two series of coumarin ring-opening derivatives by the reactions of hydrolysis and methylation. Results of antifungal screening in vitro showed that the target compounds exhibited potent activity against the six
A regioselective synthesis of pentacyclic compounds containing coumarin, pyrrole, indene without catalysts under microwave irradiation
Chen, Zhi-Wei,Hou, Jun-Bo,Dai, Zhao-Ran,Yang, Xiao-Feng
, p. 1622 - 1625 (2016)
A concise and efficient approach was developed for the synthesis of pentacyclic compounds containing coumarin, pyrrole, indene in a regioselective manner in good yields via the reactions of N-substituted 4-aminocoumarin compounds and ninhydrin using micro
Electrochemical Sulfenylation of 4-Hydroxycoumarins with Aryl Thiols Catalyzed by Potassium Iodide
Jin, Jiali,Zhao, Lingmin,Zhang, Chao,Liu, Xin,Yin, Wenxu,Shen, Zhenlu,Li, Meichao
, (2021/03/08)
A KI-catalyzed indirect electrochemical oxidative method for the synthesis of sulfenylated 4-hydroxycoumarins via cross-coupling of 4-hydroxycoumarins and aryl thiols at a low potential has been reported. The electrocatalytic activity of KI for sulfenylat
Synthesis, characterization, and anticoagulant activity of new functionalized biscoumarins
Mustafa, Yasser Fakri,Mohammed, Eman Tareq,Khalil, Raghad Riyadh
, p. 4461 - 4468 (2021/08/07)
Despite their rarity and structural complexity, natural and synthetic biscoumarins have polarized much attention from investigators particularly due to their characteristic activity as anticoagulant agents. In this work, a panel of twelve functionalized biscoumarins was synthesized in two schematic steps; the first one started by condensing various phenol-based derivatives with malonic acid via a Pechmann-type reaction yielding alkyl-substituted 4-hydroxycoumarins herein symbolized as (E1-E12). The latter compounds were undergone a self-coupling under the influence of methylene iodide to afford the target functionalized biscoumarins, which were symbolized as (EY1-EY12). The potential of the synthesized biscoumarins as anticoagulant applicants was investigated in vivo using rabbit as an animal model. The employed assay was the prothrombin time that was monitored after three and five days of the last oral treatment. The results gathered from this test revealed that the synthesized biscoumarins have a promising anticoagulant activity compared with warfarin as a standard anticoagulant drug, with privileged influence contributed to those substituted at position 7 of the coumarin framework. The authors concluded that the substitution of an alkyl group at that position of the coumarin monomer may intensify the anticoagulant activity of the prepared biscoumarins. Also, this intensity was directly proportionated to the increase in the molecular weight of this alkyl group. Accordingly, the synthesized biscoumarins possessing this property would provide an efficient base for synthesizing new compounds, which have a promising anticoagulant effect.
Copper(II)-Catalyzed Tandem Reaction: Synthesis of Furo[3,2- c]coumarin Derivatives and Evaluation for Photophysical Properties
Feng, Xi,Qin, Zhen,Cheng, Xinying,Liu, Dongyu,Peng, Yinghe,Huang, Huidan,Song, Bin,Bian, Jinlei,Li, Zhiyu
supporting information, p. 12537 - 12548 (2021/09/20)
An efficient protocol for synthesizing furo[3,2-c]coumarin derivatives is described. The novel reaction could afford the desired furocoumarins with good to excellent yields in a mild and rapid manner. Large substrate scope screening and scale-up preparation have also been accomplished, and selected compounds were evaluated for their photophysical properties.
Synthesis and anti-inflammatory activity of 2-oxo-2H-chromenyl and 2H-chromenyl-5-oxo-2,5-dihydrofuran-3-carboxylates
Bhimapaka, China Raju,Karri, Shailaja,Kuncha, Madhusudana,Kurma, Siva Hariprasad,Sistla, Ramakrishna
, (2020/06/22)
Cycloaddition reaction of 4-chloro-2-oxo-2H-chromene-3-carbaldehydes (3a-g) and 4-chloro-2H-chromene-3-carbaldehydes (7a-h) with activated alkynes (4a-b) provided the 2-oxo-2H-chromenyl-5-oxo-2,5-dihydrofuran-3-carboxylates (5a-n) and 2H-chromenyl-5-oxo-2,5-dihydrofuran-3-carboxylates (8a-p). All the prepared compounds were screened for anti-inflammatory activity. In vitro anti-inflammatory activity data demonstrated that the compounds 5g, 5i, 5k-l and 8f are effective among the tested compounds against TNF-α (1.108 ± 0.002, 0.423 ± 0.022, 0.047 ± 0.001, 0.070 ± 0.002 and 0.142 ± 0.001 μM) in comparison with standard compound Prednisolone (0.033 ± 0.002 μM). Based on in vitro results, three compounds (5i, 5k and 8f) have been selected for in vivo experiments and these compounds are identified as better compounds with respect to anti-inflammatory activity in LPS induced mice model. Compound 5i was identified as potent and showed significant reduction in TNF-α and IL-6.
Synthesis and biological evaluation of bis-N2,N2′-(4-hydroxycoumarin-3-yl)ethylidene]-2,3-dihydroxysuccinodihydrazides
Hoppe, Heinrich C.,Isaacs, Michelle,Kaye, Perry T.,Krause, Rui W. M.,Manyeruke, Meloddy H.,Seldon, Ronnett,Tshiwawa, Thendamudzimu,Warner, Digby F.
, (2020/01/22)
A series of N2,N2′-bis[4-hydroxycoumarin-3-yl)ethylidene]-2,3-dihydroxysuccino-hydrazides, containing 4-hydroxycoumarin, hydrazine and tartaric acid moieties, have been prepared and examined for possible biological activity. Several of these compounds exhibit promising HIV-1 integrase inhibition (IC50 = 3.5 μM), and anti-T. brucei (32% viability) and anti-mycobacterial (Visual MIC90 = 15.63 μM) activity.
Regioselective Synthesis of 4,5-Dihydro-6H-oxepino[3,2-c]chromene-2,6(3H)-diones through Palladium-Catalyzed Intramolecular Alkoxycarbonylation of 3-Allyl-4-hydroxycoumarins
Sosa, D. Oliver,Almaraz, Karla,Amézquita-Valencia, Manuel
supporting information, p. 4682 - 4687 (2019/08/01)
Seven-membered ring lactones fused to coumarin scaffolds were obtained via a palladium-catalyzed regioselective intramolecular alkoxycarbonylation under a CO atmosphere. Cyclocarbonylation of 3-allyl-4-hydroxycoumarin derivatives was accessed in the absen
Design, synthesis, and mechanism of dihydroartemisinin-coumarin hybrids as potential anti-neuroinflammatory agents
Yu, Haonan,Hou, Zhuang,Yang, Xiaoguang,Mou, Yanhua,Guo, Chun
, (2019/05/24)
Cancer patients frequently suffer from cancer-related fatigue (CRF), which is a complex syndrome associated with weakness and depressed mood. Neuroinflammation is one of the major inducers of CRF. The aim of this study is to find a potential agent not only on the treatment of cancer, but also for reducing CRF level of cancer patients. In this study, total-thirty new Dihydroartemisinin-Coumarin hybrids (DCH) were designed and synthesized. The in vitro cytotoxicity against cancer cell lines (HT-29, MDA-MB-231, HCT-116, and A549) was evaluated. Simultaneously, we also tested the anti-neuroinflammatory activity of DCH. DCH could inhibit the activated microglia N9 release of NO, TNF-α, and IL-6. The docking analysis was shown that MD-2, the coreceptor of TLR4, might be one of the targets of DCH.
Synthesis of substituted 4-(4-((3-Nitro-2-oxo-2H-chromene-4-yl)amino)phenyl)morpholine-3-one coumarin derivatives
Sanghani, Yogesh J.,Koradiya, Suresh B.,Patel, Anilkumar S.
, p. 1461 - 1464 (2019/06/11)
A series of novel 4-(4-amino phenyl) morpholine-3-one substituted coumarin derivatives have been prepared by chloramine coupling reaction and were identified. The novel synthetic route involves nucleophilic substitution reaction of 4-chloro-3-nitro-2H-chromene-2- one with 4-(4-amino phenyl)morpholine-3-one. Due to the presence of nitro group in coumarin derivatives make substitution reaction easy and convenient at low temperature. Using DMF as solvent and K2CO3 as base various substituted 4-(4-((3-nitro-2-oxo-2H-chromen- 4-yl)amino)phenyl)morpholine-3-one derivatives (YS-1 to YS-10) can be obtain in good yield and high purity. Structural characterization of all synthesized compound was done by NMR, Mass and IR spectra.