168419-70-3Relevant academic research and scientific papers
Bismurrayaquinone A: Synthesis, Chromatographic Enantiomer Resolution, and Stereoanalysis by Computational and Experimental CD Investigations
Bringmann, Gerhard,Ledermann, Alfons,Stahl, Martin,Gulden, Klaus-Peter
, p. 9353 - 9360 (1995)
The first total synthesis of a naturally occurring dimeric carbazole alkaloid, bismurrayaquinone A (4), is described, by oxidation of dimeric O-demethylmurrayafoline A, a still hypothetic natural product recently synthesized.By chromatography on a chiral phase, the two atropoenantiomers were separated.The absolute configurations of these two rotational isomers were elucidated by comparison of their calculated spectra with those measured experimentally.
Palladium-Catalyzed Regioselective Synthesis of 1-Hydroxycarbazoles Under Aerobic Conditions
Youn, So Won,Kim, Young Ho,Jo, Yoon Hyung
supporting information, p. 462 - 468 (2019/01/04)
A palladium-catalyzed aerobic C?H amidation of N-Ts-2-amino-3′-hydroxylbiaryls has been developed to afford a diverse range of 1-hydroxycarbazoles with high regioselectivity and efficiency. This protocol benefits from operational simplicity, robustness, a
Enantioselective total synthesis and studies into the configurational stability of bismurrayaquinone A
Konkol, Leah C.,Guo, Fenghai,Sarjeant, Amy A.,Thomson, Regan J.
, p. 9931 - 9934 (2011/12/04)
Lost in rotation: The concise strategy of the first enantioselective total synthesis of bismurrayaquinone A utilized traceless stereochemical exchange to form an enantioenriched biphenyl core that was elaborated in a bidirectional manner to the natural pr
Bromoquinone-enaminone annulations: Syntheses of murrayaquinone-A and (±)-bismurrayaquinone-A
Murphy, William S.,Bertrand, Martial
, p. 4115 - 4119 (2007/10/03)
A total synthesis of the carbazolequinone alkaloid, murrayaquinone-A was achieved by an initial annulation of the N-benzyl enamine 8 with 2-methyl-5-bromobenzoquinone 6. Shapiro deoxygenation-olefination followed by heating with DDQ resulted in the exclusive formation of N-benzylmurrayaquinone-A 16. Debenzylation proved very difficult but was finally achieved by heating briefly in trifluoroacetic acid with a catalytic quantity of trifluoromethanesulfonic acid. A single dimeric annulation side product was also formed in the annulation reaction. By using the same synthetic sequence as was employed in the synthesis of 1, the N,N-bis-p-methoxybenzyl dimer 13 was successfully converted to (±)-bismurrayaquinone-A 5.
Antiplasmodial activity of mono- and dimeric carbazoles
Bringmann, Gerhard,Ledermann, Alfons,Holenz, Joerg,Kao, Muh-Tsuen,Busse, Ulrich,Wu, Howard G.,Francois, Guido
, p. 54 - 57 (2007/10/03)
A series of mono- and dimeric natural and structurally modified carbazoles has been tested for activity against Plasmodium falciparum. One of the monomers, the synthetic compound 1,4-diacetoxy-3-methylcarbazole (17), displays the highest activity, with an
