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
Synthesis, spectral and RAHB studies on some arylhydrazones of β-diketones: crystal and molecular structures of 2-(2-(3-pyridyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione and 2-(2-(2-methoxyphenyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione
hydrogen bonding and as a result the NH proton signals and carbonyl carbon signals are shifted to higher frequency region in NMRspectra. Structural implications imposed by the formation of pseudo six-membered ring after hydrogen bonding is well observed in XRD analysis. XRD analysis also evidences the envelop conformation of the dimedone ring in both the cases and resonance assisted hydrogen bonding (RAHB)
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.