None of these selected derivatives showed significant acute toxicity against MRC-5 cells or early signs of genotoxicity in the Vitotox™ assay at the active concentration range. The structure activity study relation provided some insight in the further favourable substitution pattern at the 4-hydroxyquinolin-2(1H)-one scaffold and finally 6-fluoro-4-hydroxy-3-phenylquinolin-2(1H)-one (38) was selected as
Reaction of malonates with camphoranile synthesis of 4-hydroxy-2-pyridones attached to the bornane ring system
作者:Stanislav Kafka、Rudolf Aigner、Thomas Kappe
DOI:10.1002/jhet.5570430444
日期:2006.7
4-hydroxy-2(1H)-pyridones attached to bornane ring system 6a-c in good yields. Less satisfactory yields were obtained with the diethyl malonate 5b. The reaction of an excess of diethyl malonate 5 itself with 3b yields the pyrono derivative 7, which can readily be degraded via the acetylderivative 8 to the basic structure 9.