Identification and optimization of substituted 5-aminopyrazoles as potent and selective adenosine A1 receptor antagonists
摘要:
Potent and selective adenosine A(1) receptor antagonists were disclosed. SAR and pharmacological profile of selected compounds were discussed. (C) 2010 Elsevier Ltd. All rights reserved.
PHOTOCHEMICAL CONVERSION OF PYRAZOLES TO ENAMINONITRILES AND IMIDAZOLES
作者:Shigeru Wakamatsu、John A. Barltrop、A. Colin Day
DOI:10.1246/cl.1982.667
日期:1982.5.5
Irradiation of pyrazole, 1-methylpyrazole and 4-cyano-1-methylpyrazole gave 3-aminoacrylonitrile, 3-methylaminoacrylonitrile and 2-cyano-3-methylaminoacrylonitrile along with corresponding imidazoles. A new pathway is proposed in which both enaminonitrile and imidazole are produced immediately from pyrazole, besides the sequence of pyrazole→enaminonitrile→imidazole.