Results 41 to 50 of about 7,156 (173)

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

open access: yesMolecules, 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   +1 more
doaj   +1 more source

Hypecoum spp.—Chemistry and Biological Activity of Alkaloids

open access: yesDiversity, 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

Effects of a Synthetic Isoquinoline Derivative Against Ichthyophthirius multifiliis In Vivo and In Vitro in Grass Carp (Ctenopharyngodon idella)

open access: yesPathogens
White spot disease, caused by the parasitic Ichthyophthirius multifiliis, induces mortality exceeding 80% in intensive aquaculture systems, resulting in global annual losses of >$1 billion.
Xianqi Peng   +11 more
doaj   +1 more source

A practical and efficient approach to imidazo[1,2-a]pyridine-fused isoquinolines through the post-GBB transformation strategy

open access: yesBeilstein Journal of Organic Chemistry, 2017
Diversity-oriented synthesis of the biologically intriguing imidazo[1,2-a]pyridine-fused isoquinoline systems from readily available starting materials was achieved through the Groebke–Blackburn–Bienaymé reaction followed by a gold-catalyzed cyclization ...
Taofeng Shao   +4 more
doaj   +1 more source

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

open access: yesMolecules, 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   +8 more
doaj   +1 more source

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

open access: yesMolecules, 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   +5 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

open access: yesBeilstein 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   +2 more
doaj   +1 more source

A Small‐Molecule DEPTAC Rescues Cognitive Deficits by Targeted Dephosphorylation of Pathological Tau

open access: yesAdvanced Science, EarlyView.
TP2 is a fully synthetic small‐molecule dephosphorylation‐targeting chimera that recruits endogenous PP2A‐Bα to Tau, enabling targeted removal of pathological phosphate modifications. In two tauopathy mouse models, systemic TP2 reduces Tau pathology, preserves neuronal and synaptic integrity, improves neuroimmune homeostasis, and rescues cognition ...
Fei Sun   +12 more
wiley   +1 more source

3-Methyl-8-alkylbenzo [g]isoquinolines

open access: yes, 2020
1,2,5-Trimethyl-4-(p-alkylbenzyl)piperideines were converted to 2,5-dimethyl-4-(p-alkylbenzyl)pyridines and 3-methyl-8-alkylbenzo[g]isoquinolines.
Dorogov V.V., Prostakov N.S.
core   +2 more sources

Aktivierung von Metallkomplexen durch Ultraschallwellen für eine gezielte Krebstherapie

open access: yesAngewandte Chemie, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

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