20127-60-0Relevant articles and documents
Efficient synthesis of an indoloquinolizinium alkaloid selective DNA-binder by ring-closing metathesis
Abarca, Beatriz,Custodio, Raul,Cuadro, Ana M.,Sucunza, David,Domingo, Alberto,Mendicuti, Francisco,Alvarez-Builla, Julio,Vaquero, Juan J.
, p. 3464 - 3467 (2014)
Two total syntheses of the indolo[2,3-a]quinolizinium cation have been accomplished through the application of two ring-closing metathesis reactions to form the pyridinium ring. One of these approaches provides the tetracyclic cation in only five steps from commercially available harmane. Fluorescence-based thermal denaturation experiments, as well as spectrofluorimetric titration, circular dichroism measurements, and theoretical simulations, showed a consistent DNA-binding capacity by intercalation with a marked preference for AT-rich sequences.
Synthesis and evaluation of β-carbolinium cations as new antimalarial agents based on π-delocalized lipophilic cation (DLC) hypothesis
Takasu, Kiyosei,Shimogama, Tsubasa,Saiin, Chalerm,Kim, Hye-Sook,Wataya, Yusuke,Brun, Reto,Ihara, Masataka
, p. 653 - 661 (2007/10/03)
Several β-carbolines including naturally occurring substances and their corresponding cationic derivatives were synthesized and evaluated for antimalarial (antiplasmodial) activity in vitro and in vivo. A tetracyclic carbolinium salt was elucidated for antileishmanial and antitrypanosomal activities in vitro as well as antiplasmodial activity. Quarternary carbolinium cations showed much higher potencies in vitro than electronically neutral β-carbolines and a good correlation was observed between π-delocalized lipophilic cationic (DLC) structure and antimalarial efficacy. β-Carbolinium compounds exhibit medium suppressive activity in vivo against rodent malaria.
A new convergent synthesis of alpha-substituted-beta-carbolines
Rocca,Marsais,Godard,Queguiner
, p. 3325 - 3342 (2007/10/02)
New convergent synthesis of natural α-substituted-β-carbolines through metalations, cross-couplings and intramolecular substitutioin via (2-aminobenzene)-boronic acid, arylstannanes and ortho-fluoroiodopyridines.
β-Carboline Alkaloids, I. - Syntheses of 1-Aryl and 1-Alkenyl-β-carbolines by Palladium-Catalyzed Coupling Reactions
Bracher, Franz,Hildebrand, Dirk
, p. 1315 - 1320 (2007/10/02)
1-Chloro-β-carboline (6) is prepared in three steps starting from tryptamine (3).Palladium-catalyzed coupling reactions of 6 with aryl boronic acids offer an easy access to the alkaloids komaroine (11) and perlolyrine (15).Pavettine (16) is prepared by co