Compounds of formula (II):
or salt thereof; wherein
R1 is hydrogen or methyl,
R2 is hydrogen or methyl,
R3 is hydrogen, C1-12 straight or branched alkyl, C3-10 cycloalkyl, phenyl(C1-4)-alkyl or benzyl optionally substituted by C1-4 alkyl, C1-4 alkoxy or halogen;
R4 is hydrogen, halogen, hydroxy, C1-4 alkyl or C1-4 alkoxy,
R5 is hydrogen or fluorine,
R6 is hydrogen or fluorine,
R7 is halogen; and
n is 1 or 2, have anti-obesity andior anti-hyperglycaemic activity.
式(II)化合物
或其盐类;其中
R1 是
氢或
甲基
R2 是
氢或
甲基
R3 是
氢、C1-12 直链或支链烷基、C3-10
环烷基、
苯基(C1-4)-烷基或任选被 C1-4 烷基、C1-4 烷
氧基或卤素取代的
苄基;
R4 是
氢、卤素、羟基、C1-4 烷基或 C1-4 烷
氧基、
R5 是
氢或
氟
R6 是
氢或
氟
R7 是卤素
n 为 1 或 2,具有抗肥胖和抗高血糖活性。