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Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
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Abstract
A compound with the structure of formula (I) and its salts, in which R1 is 3-isoxazole group, phenyl, pyridyl, or single or multiple halogen, methoxy, C1~4 alkyl-substituted phenyl, or mino- or multi- C1~4 alkyl-substituted 3-isoxazole, or mono- or multi- C1~4 alkyl-substituted pyridyl; R2 is C1~4 alkyl, phenyl, amino group, or mono- or multi- methyl-substituted phenyl; R3 is hydrogen, C1~4 alkyl.