A novel series of pyrazolo[1,5-a]quinazolin-5(4H)-one derivatives proved to be a potent class of PARP-1 inhibitors. An extensive SAR around the 3-position of pyrazole in the scaffold led to the discovery of amides derivatives as low nanomolar PARP-1 inhibitors.
一系列新颖的吡唑并[1,5 - a ]喹唑啉-5(4 H)-一衍生物被证明是一种有效的PARP-1抑制剂。支架中吡唑3位附近的广泛SAR导致发现了酰胺衍生物作为低纳摩尔PARP-1抑制剂。
Water-Mediated Selective Synthesis of Pyrazolo[1,5-<i>a</i>]quinazolin-5(4<i>H</i>)-ones and [1,2,4]Triazolo[1,5-<i>a</i>]quinazolin-5(4<i>H</i>)-one via Copper-Catalyzed Cascade Reactions
作者:Xinying Zhang、Lin Gao、Zhangxin Wang、Xuesen Fan
DOI:10.1080/00397911.2015.1083032
日期:2015.11.2
Abstract A convenient and sustainable synthesis of pyrazolo[1,5-a]quinazolin-5(4H)-ones and [1,2,4]triazolo[1,5-a]quinazolin-5(4H)-one through copper-catalyzed cascade reactions of 2-bromobenzoates with 1H-pyrazol-5-amines or 1H-1,2,4-triazol-5-amine under ligand-free conditions in water is presented. It is notable that aqueous medium turned out to be crucial for the chemoselective formation of the
The present invention relates to 1H-benzimidazole-4-carboxamides of formula (I),
their preparation, and their use as inhibitors of the enzyme poly(ADP-ribose)polymerase for the preparation of drugs.
The present invention relates to 1H-benzimidazole-4-carboxamides of formula (I),
their preparation, and their use as inhibitors of the enzyme poly(ADP-ribose)polymerase for the preparation of drugs.