Results 21 to 30 of about 12,369 (209)

7-Acetyl-8-(4-chlorophenyl)-3-ethylsulfanyl-6-hydroxy-1,6-dimethyl-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile

IUCrData, 2017
In the title compound, C22H23ClN2O2S, the chlorophenyl ring is inclined to the pyridine ring of the isoquinoline ring system by 79.78 (4)°. The cyclohexane ring adopts a flattened boat conformation.
Joel T. Mague, Shaaban K. Mohamed, Mehmet Akkurt, Etify A. Bakhite, Mustafa R. Albayati   +4 more
doaj   +1 more source

The unique reactivity of 5,6-unsubstituted 1,4-dihydropyridine in the Huisgen 1,4-diploar cycloaddition and formal [2 + 2] cycloaddition

Beilstein Journal of Organic Chemistry, 2023
The three-component reaction of isoquinolines, dialkyl acetylenedicarboxylates, and 5,6-unsubstituted 1,4-dihydropyridines in acetonitrile at room temperature afforded functionalized isoquinolino[1,2-f][1,6]naphthyridines in good yields and with high ...
Xiu-Yu Chen, Hui Zheng, Ying Han, Jing Sun, Chao-Guo Yan   +4 more
doaj   +1 more source

Anti-Alphaviral Alkaloids: Focus on Some Isoquinolines, Indoles and Quinolizidines

Molecules, 2022
The discovery and the development of safe and efficient therapeutics against arthritogenic alphaviruses (e.g., chikungunya virus) remain a continuous challenge.
Anne-Laure Sandenon Seteyen, Emmanuelle Girard-Valenciennes, Axelle Septembre-Malaterre, Philippe Gasque, Pascale Guiraud, Jimmy Sélambarom   +5 more
doaj   +1 more source

Isoquinolin-5-amine

Acta Crystallographica Section C Crystal Structure Communications, 2012
The title compound, C9H8N2, presents two almost identical independent molecules in the asymmetric unit, both of them exhibiting an extremely planar isoquinoline core (maximum r.m.s. deviation = 0.014 Å). The most significant deviation is found in the –NH2groups, which present a noticeable pyramidalization around the N atom, a feature also present in ...
Maria Atria, Ana, Teresa Garland, Maria, Baggio, Ricardo   +2 more
openaire   +4 more sources

‘One-pot’ Synthesis of Dihydrobenzo[4,5][1,3]oxazino[2,3-a] isoquinolines via a Silver(I)-Catalyzed Cascade Approach

Molecules, 2013
An efficient approach for the synthesis of biologically interesting fused tetracyclic isoquinolines in high yields and with a broad substrate scope has been developed. The strategy features an AgNO3 catalyzed ‘one-pot’ cascade process
Jian Li, Hong Liu, Qingya Kong, Hualiang Jiang, Yu Zhou, Baifeng Jiang   +5 more
doaj   +1 more source

Synthesis and Kinase Inhibitory Potencies of Pyrazolo[3,4-g]isoquinolines

Molecules, 2022
A new series of pyrazolo[3,4-g]isoquinoline derivatives, diversely substituted at the 4- or 8-position, were synthesized. The results of the kinase inhibitory potency study demonstrated that the introduction of a bromine atom at the 8-position was ...
Mathilde Defois, Chloé Rémondin, Béatrice Josselin, Lionel Nauton, Vincent Théry, Fabrice Anizon, Sandrine Ruchaud, Francis Giraud, Pascale Moreau   +8 more
doaj   +1 more source

Aminomethylation/hydrogenolysis as an alternative to direct methylation of metalated isoquinolines – a novel total synthesis of the alkaloid 7-hydroxy-6-methoxy-1-methylisoquinoline

Beilstein Journal of Organic Chemistry, 2018
Highly-substituted isoquinolines are important scaffolds in syntheses of natural products and in drug development and hence, effective synthetic approaches are required.
Benedikt C. Melzer, Jan G. Felber, Franz Bracher   +2 more
doaj   +1 more source

Hypecoum spp.—Chemistry and Biological Activity of Alkaloids

Diversity, 2023
Genus Hypecoum Tourn. ex L. belongs to the poppy family Papaveraceae and comprises about 19 species occurring in Europe, Northern Africa and Asia.
Nadezhda Kostova, Tsvetelina Doncheva
doaj   +1 more source

Reactivity of 3-Ethoxycarbonyl Isoquinolinium Salts Towards Various Nucleophilic Reagents: Applications to the Synthesis of New 1,2-Dihydroisoquinoline-3-carboxylates

Molecules, 2002
Different types of novel 1,2-disubstituted 1,2-dihydro isoquinolines were synthesized by addition reactions of organolithium, alcoholates and borohydride reagents with various isoquinolinium salts.
Jean Pierre Bazureau, Mohamed Ameziane Aït Amer Meziane   +1 more
doaj   +1 more source

Rhodium-Catalyzed Oxidative Annulation of 2- or 7-Arylindoles with Alkenes/Alkynes Using Molecular Oxygen as the Sole Oxidant Enabled by Quaternary Ammonium Salt

Molecules, 2021
Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable.
Weihui Zhuang, Jiaqi Zhang, Yanping Zheng, Qiufeng Huang   +3 more
doaj   +1 more source