924627-44-1Relevant articles and documents
New synthetic approach to paullones and characterization of their SIRT1 inhibitory activity
Soto, Sara,Vaz, Esther,Dell'Aversana, Carmela,Alvarez, Rosana,Altucci, Lucia,De Lera, Angel R.
scheme or table, p. 2101 - 2112 (2012/04/23)
A series of 7,12-dihydroindolo[3,2-d][1]benzazepine-6(5H)-ones (paullones) substituted at C9/C10 (Br) and C2 (Me, CF3, CO2Me) have been synthesized by a one-pot Suzuki-Miyaura cross-coupling of an o-aminoarylboronic acid and methyl 2-iodoindoleacetate followed by intramolecular amide formation. Other approaches to the paullone scaffold based on Pd-catalyzed C-H activation were unsuccessful. In vitro enzymatic assay with recombinant human SIRT-1 indicated a strong inhibitory profile for the series, in particular the analogue with a methoxycarbonyl group at C2 and a bromine at C9. These compounds are, in general, inducers of granulocyte differentiation of the U937 acute leukemia cell line and cause a marked increase in pre-G1 of the cell cycle.
New route to the 5,12-dihydro-7H-benzo[2,3]azepino[4,5-b]indol-6-one core via a tin-mediated indole synthesis
Henry, Nicolas,Blu, Jerome,Beneteau, Valerie,Merour, Jean-Yves
, p. 3895 - 3901 (2008/02/09)
A new route to the paullone scaffold was designed. The key step consisted in a free radical indole formation from an o-alkenyl arylisonitrile followed by Stille coupling with N-Boc-o-iodoaniline. After deprotection and closure of the seven-membered ring by lactamisation, parent or cyano-substituted paullones were obtained in moderate to good yields. Georg Thieme Verlag Stuttgart.