6286-46-0Relevant articles and documents
Synthesis of 4-ethyl-5-methyl-5,6-dihydrophenanthridine-8,9-diol as the key intermediate of potent agonists of the Wnt signalling pathway
Jing, Chen-Xu,Cai, Jie-Yun,Zhang, Yu,Chen, Duo-Zhi,Hao, Xiao-Jiang
, p. 247 - 250 (2015)
The synthesis of 4-ethyl-5-methyl-5,6-dihydro-phenanthridine-8,9-diol as the key intermediate of a series of potent Wnt signalling pathway agonists is reported. This synthesis features a consecutive aryl-aryl and N-aryl coupling, leading to 4-ethyl-5-meth
Tandem copper catalyzed regioselectiveN-arylation-amidation: synthesis of angularly fused dihydroimidazoquinazolinones and the anticancer agent TIC10/ONC201
Honnanayakanavar, Jyoti M.,Nanubolu, Jagadeesh Babu,Suresh, Surisetti
supporting information, p. 8497 - 8501 (2021/10/20)
Herein, we present a copper-catalyzed tandem reaction of 2-aminoimidazolines andortho-halo(hetero)aryl carboxylic acids that causes the regioselective formation of angularly fused tricyclic 1,2-dihydroimidazo[1,2-a]quinazolin-5(4H)-one derivatives. The reaction involved in the construction of the core six-membered pyrimidone moiety proceededviaregioselectiveN-arylation-condensation. The presented protocol been successfully applied to accomplish the total synthesis of TIC10/ONC201, which is an active angular isomer acting as a tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL): a sought after anticancer clinical agent.
THIOXANTHONE DERIVATIVES, COMPOSITION COMPRISING THE SAME AND PATTERN FORMING METHOD COMPRISING SAID COMPOSITION
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, (2020/02/14)
Latent photoinitiator compounds are described, as well as compositions containing such compounds and their uses in photoinitated methods for producing photoresist structures.
COMPOUND FOR TREATMENT OR PREVENTION OF OBESITY OR DISEASES RELATED TO OBESITY, AND APPLICATION THEREOF
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Paragraph 0271, (2020/08/09)
A compound for treatment or prevention of obesity or diseases related to obesity, and an application thereof. Specifically, provided are a compound as represented by formula I, or a pharmaceutically-acceptable salt thereof, and a pharmaceutical compositio
METHOD FOR PRODUCING 2-HALOGENATED BENZOIC ACIDS
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Paragraph 0061; 0062; 0067; 0068-0073, (2018/04/20)
The purpose of the present invention is to provide a method for producing 2-halogenated benzoic acids, the method imparting high regioselectivity (high selectivity) and having a shorter reaction time than does the conventional reaction. This method for producing 2-halogenated benzoic acids, in order to achieve the above purpose, is characterized in that benzoic acids and a halogenating agent are reacted in the presence of an alkaline compound, making it possible to highly selectively obtain 2-halogenated benzoic acids.
Urolithin C, a gut metabolite of ellagic acid, induces apoptosis in PC12 cells through a mitochondria-mediated pathway
Yin, Peipei,Zhang, Jianwei,Yan, Linlin,Yang, Lingguang,Sun, Liwei,Shi, Lingling,Ma, Chao,Liu, Yujun
, p. 17254 - 17263 (2017/03/27)
Urolithins (Uros), metabolites of ellagitannins (ET) and ellagic acid (EA) produced by gut microbiota, showed better bioavailability and extensive bioactivity, and were considered as the active compounds responsible for the health benefits exerted by ET-containing foodstuffs. Here, we chemically synthesized three Uros including Uros A, B, and C and compared their anti-proliferative activities with that of EA in PC12 cells. MTT assay showed that EA significantly promoted, while Uros significantly inhibited the proliferation of PC12 cells, among which UroC showed the strongest anti-proliferation. UroC treatment actively increased the lactate dehydrogenase (LDH) release and lipid peroxidation malondialdehyde (MDA), stimulated reactive oxygen species (ROS) formation and mitochondrial membrane depolarization, and caused calcium dyshomeostasis. Furthermore, flow cytometry analysis showed that UroC treatment induced apoptosis and S phase cell cycle arrest with increasing UroC concentrations. Consequently, UroC also induced imbalance in the Bcl-2/Bax ratio, which triggered the caspase cascade, thereby shifting the balance in favor of apoptosis, as evidenced by western blotting and real-time PCR. These observations indicated that UroC possessed significantly different anti-proliferation activities from EA, and actively induced cell apoptosis through a mitochondria-mediated pathway.
Phenanthridine Derivatives, Preparation Methods and Uses Thereof
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Paragraph 0125, (2016/04/19)
The present invention relates to the pharmaceutical field, in particular to a phenanthridine derivative as shown in general formula (1) a pharmaceutical composition comprising the derivative, its preparation method, and its uses in manufacture of a medica
Efficient and convenient copper-free Pd(OAc)2/Ruphos-catalyzed Sonogashira coupling in the preparation of corfin analogues
Dasaradhan, Changalaraya,Kumar, Yadavalli Suneel,Prabakaran, Kamalakannan,Khan, Fazlur-Rahman Nawaz,Jeong, Euh Duck,Chung, Eun Hyuk
supporting information, p. 784 - 788 (2015/01/30)
The Sonogashira coupling reaction of 3-chloro-1H-isochromen-1-one and terminal alkynes, in the presence of catalytic system-Pd(OAc)2/Ruphos, Et3N base, and tetrahydrofuran solvent under aqueous conditions, provided novel 3-(alkynyl)-
Palladium catalyzed Suzuki Miyaura cross coupling of 3-chloroisochromen-1-one: Synthesis of glomellin and reticulol analogues
Kumar, Yadavalli Suneel,Dasaradhan, Changalaraya,Prabakaran, Kamalakannan,Manivel, Pitchai,Nawaz Khan, Fazlur-Rahman,Jeong, Euh Duck,Chung, Eun Hyuk
supporting information, p. 941 - 945 (2015/02/05)
A facile protocol has been developed for a series of 3-substituted isochromen-1-ones utilizing Suzuki coupling strategy. The reaction of 3-chloroisochromen-1one, 1 with different boronic acids utilizing PdCl2(PPh3)2-Ruphos catalytic system gave diversified 3-substituted isochromen-1-ones in excellent yields. The methodology has been utilized in the synthesis of glomellin and reticulol analogues.
Efficient copper-free Pd(OAc)2/Ruphos-catalyzed Sonogashira coupling in the preparation of 3′-hydroxycorfin and gymnopalynes A analogues
Dasaradhan, Changalaraya,Suneel Kumar, Yadavalli,Nawaz Khan, Fazlur-Rahman,Jeong, Euh Duck,Chung, Eun Hyuk
supporting information, p. 187 - 191 (2015/02/19)
An efficient method involving copper-free Pd(OAc)2/Ruphos-catalyzed Sonogashira coupling strategy for a variety of 3-alkynyl isochromen-1-ones has been developed. Sonogashira coupling in the presence of catalytic system - Pd(OAc)2/Ruphos, Et3N base, and tetrahydrofuran solvent under aqueous and room temperature conditions, provided novel 3-(alkynyl)-1H-isochromen-1-ones in excellent yields. The methodology has also been extended toward natural isochromen-1-one-3′-hydroxycorfin and gymnopalynes A analogues.