774585-94-3Relevant articles and documents
Synthesis and preliminary structure-activity relationship study of 2-aryl-2H-pyrazolo[4,3-c]quinolin-3-ones as potential checkpoint kinase 1 (Chk1) inhibitors
Malvacio, Ivana,Cuzzolin, Alberto,Sturlese, Mattia,Vera, D. Mariano A.,Moyano, E. Laura,Moro, Stefano
, p. 171 - 183 (2017/12/26)
The serine-threonine checkpoint kinase 1 (Chk1) plays a critical role in the cell cycle arrest in response to DNA damage. In the last decade, Chk1 inhibitors have emerged as a novel therapeutic strategy to potentiate the anti-tumour efficacy of cytotoxic chemotherapeutic agents. In the search for new Chk1 inhibitors, a congeneric series of 2-aryl-2 H-pyrazolo[4,3-c]quinolin-3-one (PQ) was evaluated by in-vitro and in-silico approaches for the first time. A total of 30 PQ structures were synthesised in good to excellent yields using conventional or microwave heating, highlighting that 14 of them are new chemical entities. Noteworthy, in this preliminary study two compounds 4e2 and 4h2 have shown a modest but significant reduction in the basal activity of the Chk1 kinase. Starting from these preliminary results, we have designed the second generation of analogous in this class and further studies are in progress in our laboratories.
Synthesis and antiviral activities of new pyrazolo[4,3-c]quinolin-3-ones and their ribonucleoside derivatives
De Oliveira, Mara R. P.,Alves, Thatyana R.,Pinto, Angelo C.,Pereira, Helena De S.,Leao-Ferreira, Luiz R.,Moussatche, Nissin,Frugulhetti, Izabel Christina De P. P.,Ferreira, Vitor F.,De Souza, Maria Cecilia B. V.
, p. 735 - 748 (2007/10/03)
Several new pyrazolo[4,3-c]quinolin-3-one ribonucleosides (5a-g) and their corresponding heterocycle moieties (3a-g) were synthesized and evaluated against vaccinia virus (VV) and herpes simplex virus type 1 (HSV-1). The derivatives 3c and 3d showed modes
