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    • 3. 发明授权
    • 4,5-diaryloxazole compounds
    • 4,5-二碘唑化合物
    • US06297267B1
    • 2001-10-02
    • US09529405
    • 2000-04-26
    • Kouji HattoriNaoaki FujiiAkira TanakaFujiko Takamura
    • Kouji HattoriNaoaki FujiiAkira TanakaFujiko Takamura
    • A61K3142
    • C07D413/04C07D263/32Y02P20/55
    • A compound of the formula: wherein R1 is a hydrogen atom or a carboxy protective group, R2, R5, R6 and R7 are each a hydrogen atom or a hydroxy group, R3 and R4 are each a hydrogen atom, or are combined together to form an epoxy group or a single bond. R8 and R9 are each an optionally substituted aryl group, and X is a single bond or a methylene group, in addition to the above definitions. R2 and R3 may be combined together to form a single bond; provided that when R2, R5, R6 and R7 are each a hydrogen atom, then R3 and R4 are combined together to form an epoxy group; when R3 and R4 are combined together to form a single bond, then at least one of R2, R5, R6 and R7 is a hydroxy group and the others are hydrogen; and when R3 and R4 are each a hydrogen atom, then at least one of R2, R5, R6 and R7 is a hydroxy group and the others are hydrogen, and X is a methylene group, or its salt.
    • 下式的化合物:其中R 1是氢原子或羧基保护基,R 2,R 5,R 6和R 7各自是氢原子或羟基,R 3和R 4各自是氢原子,或者组合在一起形成 环氧基或单键。 除上述定义之外,R 8和R 9各自为任选取代的芳基,X为单键或亚甲基。 R2和R3可以组合在一起形成单键; 条件是当R 2,R 5,R 6和R 7各自为氢原子时,则R 3和R 4组合在一起形成环氧基; 当R3和R4组合在一起形成单键时,R 2,R 5,R 6和R 7中的至少一个是羟基,而其余的是氢; 当R 3和R 4各自为氢原子时,R 2,R 5,R 6和R 7中的至少一个为羟基,其余为氢,X为亚甲基或其盐。