氮桥头化合物。第85部分。3,4-二氢-1 H,6 H [1,4]恶嗪基[3,4- b ]喹唑啉-6-酮的合成和反应性† ‡
摘要:
通过不同的途径制备了3,4-二氢-1 H,6 H- [1,4]恶嗪基[3,4- b ]喹唑啉-6-one 3及其1-甲基和1-羟基衍生物8和13。使化合物3的活性亚甲基与电子-羟基试剂(溴,氯化苯基重氮,亚硝酸,Vielsmeier-Haack试剂,芳族醛和草酸二乙酯)反应,生成1-取代的3,4-二氢[1 H, 6 H)-1,4-恶嗪基[3,4- b ]喹唑啉-6-酮。1-羟基和1-溴衍生物13和15的反应性在某些反应中也进行了调查。通过uv,1 H和13 C nmr光谱对3,4-二氢-1 H,6 H- [1,4]恶嗪基[3,4- b ]喹唑啉-6-进行了表征。
Enantioselective Synthesis of 3-Arylquinazolin-4(3<i>H</i>)-ones via Peptide-Catalyzed Atroposelective Bromination
作者:Matthew E. Diener、Anthony J. Metrano、Shuhei Kusano、Scott J. Miller
DOI:10.1021/jacs.5b07726
日期:2015.9.30
atroposelective bromination of pharmaceutically relevant 3-arylquinazolin-4(3H)-ones (quinazolinones) with high levels of enantioinduction over a broad substrate scope. The structure of the free catalyst and the peptide-substrate complex were explored using X-ray crystallography and 2D-NOESY experiments. Quinazolinone rotational barriers about the chiral anilide axis were also studied using density functional
Design and synthesis of new derivatives of 3H-quinazolin-4-one as potential anticonvulsant agents
作者:Uma Kabra、Chandrabhan Chopde、Sudhir Wadodkar
DOI:10.1002/jhet.754
日期:2011.11
As a part of systematic investigation on synthesis and biological activities, somenewderivatives of 2‐ethyl‐3‐(substituted benzothiazole‐2′‐yl)–[3H]‐quinazolin‐4‐ones 3 have been synthesized, and the structures of the compounds were confirmed by elemental analysis and spectral data. The newly synthesized derivatives are then screened for anticonvulsant activity by maximal electroshock method. J.
作为合成和生物活性系统的调查的一部分,一些新的衍生物2-乙基-3-(取代的苯并噻唑-2'-基) - [3 H ^ ] -喹唑啉-4-酮3已被合成,并且这些结构化合物的分析通过元素分析和光谱数据证实。然后通过最大电击法筛选新合成的衍生物的抗惊厥活性。J.杂环化学。(2011)。
Synthesis and Structure-Activity Relationships of Vasicine Analogues as Bronchodilatory Agents
The series of vasicine ( 1 ) analogues, an alkaloid from Adhatoda vasica Nees., were synthesized with changes in A, B or C rings. Compounds 13-19 were evaluated for in vitro bronchodilatory activity using isolated guinea pig tracheal chain. Compounds 3-8 were also synthesized in good yields using microwave-mediated synthesisundersolventfreeconditions. Compounds 5 and 8 with seven-member C ring
Mycobacteriumtuberculosis (MTB) infection has become a growing health risk as multi-drug resistant strain (MDR-MTB) has emerged worldwide. The development of isoniazid (INH)-resistant M. tuberculosis strains dictate the need to re-design this old drug to create effective analogs against the resistant INH strains. Synthesis and the biological activity of isoniazid and pyridine derivatives were successfully
[EN] PYRIMIDINE DERIVATIVES AS MODULATORS OF ATP-BINDING CASSETTE TRANSPORTERS<br/>[FR] DERIVES DE PYRIMIDNE UTILISES EN TANT QUE MODULATEURS DE TRANSPORTEURS DE CASSETTE DE LIAISON A L'ATP
申请人:VERTEX PHARMA
公开号:WO2004111014A1
公开(公告)日:2004-12-23
The present invention relates to compounds of Formula (I) as modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Regulator (“CFTR”), compositions thereof, and methods therewith. The present invention also relates to methods of treating ABC transporter mediated diseases using such modulators.