The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on.
A compound of formula (I
0
):
wherein
R
1
represents
a substituent,
R
2
represents
a hydrogen atom, or a substituent,
R
3
represents
a hydrogen atom, or a substituent,
Ring A represents
an aromatic ring which can be substituted, and
Ring B represents
a 5-membered heteroaromatic ring which can be substituted,
or a salt thereof.
Aryldiazenyl Radicals from Arylazo Sulfones: Visible Light‐Driven Diazenylation of Enol Silyl Ethers
作者:Havall Othman Abdulla、Simone Scaringi、Ahmed A. Amin、Mariella Mella、Stefano Protti、Maurizio Fagnoni
DOI:10.1002/adsc.201901424
日期:2020.5.26
A versatile protocol for the diazenylation of enolsilylethers under visible light irradiation is presented herein. The reaction is based on the underused reaction of a nitrogen‐based radical (the diazenyl radical) with an enolsilylether. Arylazo sulfones were used as photoactivatable precursors of these diazenyl radicals. The resulting azaderivatives are potentially bioactive compounds as well
Spectral and cyclic voltammetric studies on some intramolecularly hydrogen bonded arylhydrazones: Crystal and molecular structure of 2-(2-(3-nitrophenyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione
作者:A. Sethukumar、B. Arul Prakasam
DOI:10.1016/j.molstruc.2009.11.001
日期:2010.1
the effective intramolecular hydrogen bonding in all the cases. Cyclic voltammetric studies certainly indicate that in all the cases the reduced center is C N bond of hydrazonic moiety. The single crystal X-ray structural analysis of 2-(2-(3-nitrophenyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione ( 6 ) is also reported. Single crystal X-ray analysis of 6 evidences the intramolecular hydrogen bonding
摘要 通过乙酰丙酮/二甲酮与各自的芳族重氮盐偶联制备了一系列芳腙衍生物( 1 - 7 ),并通过红外、 1 H 和 13 C NMR 光谱进行了表征。IR 和 NMR 光谱数据清楚地表明在所有情况下有效的分子内氢键。循环伏安研究肯定表明,在所有情况下,还原中心是腙部分的 CN 键。还报道了 2-(2-(3-硝基苯基) 腙)-5,5-二甲基环己烷-1,3-二酮 (6) 的单晶 X 射线结构分析。6 的单晶 X 射线分析证明分子内氢键与 N(2)⋯O(4) 距离为 2.642(15) A,根据 Etter 的图形命名法,可将其指定为 S(6)。分子(6)中的环己烷环构象可以描述为包膜。RAHB 研究表明,由于参与 Etter 图中共振循环 S(6) 的六个原子的非平面性,化合物 (6) 对氢键的共振辅助显着降低。共振循环 S(6) 的平面性受到环己烷环构象要求的极大干扰,因此 RAHB 概念在这种情况下不太适用。
PYRIDAZINONE COMPOUNDS
申请人:TANIGUCHI Takahiko
公开号:US20120277204A1
公开(公告)日:2012-11-01
The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I
0
), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.
The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent; R2 represents a hydrogen atom, or a substituent; R3 represents a hydrogen atom, or a substituent; Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.