This invention relates to novel compounds having the structural formula I below:
and their pharmaceutically acceptable salts, tautomers or in vivo-hydrolysable precursors, compositions and methods of use thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, and R
6
are defined in the specification. These novel compounds provide a treatment or prophylaxis of anxiety disorders, schizophrenia, cognitive disorders, and/or mood disorders.
Synthesis and topoisomerase I inhibitory properties of luotonin A analogues
作者:Ali Cagir、Brian M. Eisenhauer、Rong Gao、Shannon J. Thomas、Sidney M. Hecht
DOI:10.1016/j.bmc.2004.08.052
日期:2004.12
reaction proceeded to a single product. In contrast when the reaction was carried out in tetrahydrofuran or in phosphorus oxychloride, an additional isomeric product was obtained. The luotonin A analogues were evaluated for their ability to effect stabilization of the covalent binary complex formed between human topoisomerase I and DNA, and for cytotoxicity toward a yeast strain expressing the human
Total synthesis of structures proposed for quinocitrinines A and B and their analogs. Microwave energy as efficient tool for generating heterocycles
作者:Victoria Machtey、Hugo E. Gottlieb、Gerardo Byk
DOI:10.3998/ark.5550190.0012.923
日期:——
A first totalsynthesis of the structuresproposed for quinocitrinines A and B has been accomplished by a three steps strategy which also applies for the synthesis of non-natural analogs. In the first step a microwave assisted Friedlander condensation between a substituted oamino-benzaldehyde and a substituted tetramic acid generated intermediate fused tricyclic quinolines which were N-methylated using
为奎尼奇宁 A 和 B 提出的结构的第一次全合成已通过三步策略完成,该策略也适用于非天然类似物的合成。在第一步中,取代的邻氨基苯甲醛和取代的特拉姆酸之间的微波辅助弗里德兰德缩合生成中间体稠合三环喹啉,其使用三氟甲磺酸甲酯进行 N-甲基化。天然化合物是在使用 BBr3 从芳环上裂解 O-甲基后获得的。所有反应都受到内酰胺环中 C-11 的差向异构化的影响,将奎尼替林 A 转化为奎尼奇宁 B。为了减少差向异构化,优化分析是必要的。
NOVEL PHOSPHODIESTERASE INHIBITORS AND USES THEREOF
申请人:The Trustees of Columbia University in the City of New York
公开号:US20160152612A1
公开(公告)日:2016-06-02
The invention provides for novel benzonaphthyridine derivatives and compositions comprising novel benzonaphthyridine derivatives. In some embodiments, the compounds are phosphodiesterase inhibitors. The invention further provides for methods for inhibition of phosphodiesterase comprising contacting phosphodiesterase with novel benzonaphthyridine derivatives or compositions comprising novel benzonaphthyridine derivatives. The invention further provides for methods for treatment of neurodegenerative diseases, increasing memory or long term potentiation with novel benzonaphthyridine derivatives or compositions comprising novel benzonaphthyridine derivatives. In some embodiments, the phosphodiesterase is PDE5.
申请人:The Trustees of Columbia University in the City of New York
公开号:US10899756B2
公开(公告)日:2021-01-26
The invention provides for novel benzonaphthyridine derivatives and compositions comprising novel benzonaphthyridine derivatives. In some embodiments, the compounds are phosphodiesterase inhibitors. The invention further provides for methods for inhibition of phosphodiesterase comprising contacting phosphodiesterase with novel benzonaphthyridine derivatives or compositions comprising novel benzonaphthyridine derivatives. The invention further provides for methods for treatment of neurodegenerative diseases, increasing memory or long term potentiation with novel benzonaphthyridine derivatives or compositions comprising novel benzonaphthyridine derivatives. In some embodiments, the phosphodiesterase is PDE5.