Synthesis of 6-aryl-Substituted Azocino-[5,4-b]indoles from 1-aryl-Substituted 2-Ethyltetrahydro-β-Carbolines
摘要:
We optimized the reaction of tetrahydropyridine ring expansion in 1-aryl-substituted tetrahydro-beta-carbolines by the action of activated alkynes and achieved higher than 70% yields of the target indoloazocines. The substituents in the 1-aryl ring and at the indole nitrogen atom were shown to affect the rate and selectivity of this transformation.
N-Bromo-succinimide promoted synthesis of β-carbolines and 3,4-dihydro-β-carbolines from tetrahydro-β-carbolines
作者:Santanu Hati、Subhabrata Sen
DOI:10.1016/j.tetlet.2016.01.081
日期:2016.3
Herein, we report a facile synthesis of 3,4-dihydro-β-carbolines and aromatic β-carbolines from tetrahydro-β-carbolines, mediated by N-bromosuccinimide in toluene at 0 °C to room temperature (rt), in good to moderate yields.
Cerium Chloride Catalyzed, 2-Iodoxybenzoic Acid Mediated Oxidative Dehydrogenation of Multiple Heterocycles at Room Temperature
作者:Santanu Hati、Subhabrata Sen
DOI:10.1002/ejoc.201601419
日期:2017.3.3
Catalytic ceriumchloride was found to activate 2-iodoxybenzoicacid (IBX) for the oxidativedehydrogenation of tetrahydroisoquinolines, tetrahydro-β-carbolines, and thiazolidines to their dehydrogenated and aromatic forms at roomtemperature in moderate to excellent yields. The robustness of the protocol was demonstrated by scaling up the reactions to multigram quantities.
The unprecedented triarylcarbonium ion-pair-catalyzed Pictet–Spengler reaction of tryptamines with aromaticaldehydes and cyclic ketones in water was disclosed. Under metal-free conditions, diverse tetrahydro-β-carbolines and spirocyclic tetrahydro-β-carbolines were obtained in good yields with excellent functional group tolerance, including late-stage modification of natural products and small molecular
Design, synthesis and biological evaluation of a novel library of antimitotic C2-aroyl/arylimino tryptamine derivatives that are also potent inhibitors of indoleamine-2, 3-dioxygenase (IDO)
products. The molecular docking of the designed compounds indicated that they bind to the colchicin binding site of tubulin. They were synthesized by a unique iodine catalysed oxidative ring opening reaction of 1-aryltetrahydro-β-carbolines. Among the compounds synthesized quite a few compounds induced cytotoxicity on the cancer cells by disrupting the tubulinpolymerization. They were found to be non-toxic
The present invention relates to the compound represented by formula (I)
A—X—Y-Z-B (I)
(wherein A is a cyclic group which may have a substituent(s); X is a single bond or a spacer; Y is a single bond or a spacer; Z is a single bond or a spacer; B is a hydrocarbon group which may have a substituent(s) or a cyclic group which may have a substituent(s)), a salt thereof, a solvate thereof or a prodrug thereof. The compound represented by formula (I), a salt thereof, a solvate thereof or a prodrug thereof is useful for preventive and/or therapeutic agent for a disease caused by stress.