Synthesis of Pyrimidine Derivatives Possessing an Antioxidative Property and Their Inhibitory Effects on Picryl Chloride-Induced Contact Hypersensitivity Reaction
Synthesis of Pyrimidine Derivatives Possessing an Antioxidative Property and Their Inhibitory Effects on Picryl Chloride-Induced Contact Hypersensitivity Reaction
Synthesis of Pyrimidine Derivatives Possessing an Antioxidative Property and Their Inhibitory Effects on Picryl Chloride-Induced Contact Hypersensitivity Reaction
作者:Yoshiaki Isobe、Kosaku Hirota
DOI:10.1248/cpb.51.1451
日期:——
We conducted a preliminary structure–activity relationship (SAR) study of some barbituric acid and uracil derivatives against the picryl chloride-induced contact hypersensitivity reaction. The introduction of an antioxidative moiety to the side chain of the C(6)-position of uracil was effective against this model. The introduction of dimethoxyphenol (8b) or dimethylphenol (8c) instead of di-t-butylphenol (8a) as an antioxidative moiety gave diminished activities, so, the reactive oxygen would contribute to the inflammation of this model, and an antioxidative activity was required for exhibiting the inhibitory activity. The inhibitory activity was significantly affected by the substituent at the N(1)-phenyl moiety.