| 摘要 |
A protective against ultraviolet which contains as an active ingredient a compound functioning to protect against ultraviolet and represented by the general formula (I'): (I') wherein X represents NH or oxygen; Y' represents vinyl substituted by methyl or phenyl, phenyl substituted by methoxy or fluorine, or naphthyl; and Z represents methyl, phenyl substituted by carboxy or nitro, or naphthyl. The compounds represented by the general formula (I') include both the novel compounds of the invention and known compounds. The protective against ultraviolet is highly effective in prevention against ultraviolet and is highly safe.
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