The emergence of drug‐resistant strains of influenza virus makes exploring new classes of inhibitors that target universally conserved viral targets a highly important goal. The influenza A viral genome is made up of eight single‐stranded RNA‐negative segments. The RNA promoter, consisting of the conserved sequences at the 3′ and 5′ end of each RNA genomic segment, is universally conserved among influenza A virus strains and in all segments. Previously, we reported on the identification and NMR structure of DPQ (6,7‐dimethoxy‐2‐(1‐piperazinyl)‐4‐quinazolinamine) (compound 1) in complex with the RNA promoter. Here, we report on additional screening and SAR studies with compound 1, including ex vivo anti‐influenza activity assays, resulted in improved cellular activity against influenza A virus in the micromolar range.
Method of treating a patient having precancerous lesions with quinazoline derivatives
申请人:Cell Pathways, Inc.
公开号:US06262059B1
公开(公告)日:2001-07-17
Derivatives of Quinazoline are useful for the treatment of patients having precancerous lesions. These compounds are also useful to inhibit growth of neoplastic cells.
喹唑啉衍生物对于治疗患有癌前病变的患者很有用。这些化合物还可用于抑制肿瘤细胞的生长。
2-Piperazinyl-6,7-dimethoxyquinazolines
申请人:Mead Johnson & Company
公开号:US04060615A1
公开(公告)日:1977-11-29
A series of novel 4-amino or 4-hydrazino-2-(substituted piperazinyl)-6,7-dimethoxyquinazolines is disclosed having antihypertensive and phosphodiesterase inhibiting properties. Piperazinyl substituents include cycloalkenylcarbonyl, cycloalkylcarbonyl, and methylcycloalkylcarbonyl. A representative embodiment of the invention is 4-amino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazoline .
作者:Angel Bottini、Surya K. De、Bainan Wu、Changyan Tang、Gabriele Varani、Maurizio Pellecchia
DOI:10.1111/cbdd.12534
日期:2015.10
The emergence of drug‐resistant strains of influenza virus makes exploring new classes of inhibitors that target universally conserved viral targets a highly important goal. The influenza A viral genome is made up of eight single‐stranded RNA‐negative segments. The RNA promoter, consisting of the conserved sequences at the 3′ and 5′ end of each RNA genomic segment, is universally conserved among influenza A virus strains and in all segments. Previously, we reported on the identification and NMR structure of DPQ (6,7‐dimethoxy‐2‐(1‐piperazinyl)‐4‐quinazolinamine) (compound 1) in complex with the RNA promoter. Here, we report on additional screening and SAR studies with compound 1, including ex vivo anti‐influenza activity assays, resulted in improved cellular activity against influenza A virus in the micromolar range.