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发明授权
US5681841A Cyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing them 失效
环状脲衍生物，含有这些化合物的药物组合物及其制备方法

Cyclic urea derivatives, pharmaceutical compositions containing these compounds and processes for preparing them
摘要：
The invention relates to cyclic urea derivatives of general formula I ##STR1## wherein R.sub.a, R.sub.b, X and Y are defined as in claim 1, the tautomers, stereoisomers and salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable pharmacological properties, preferably aggregation inhibiting effects, and to drugs containing the compounds and processes for preparing them.
摘要（中）：

本发明涉及通式I（I）的环脲衍生物，其中Ra，Rb，X和Y如权利要求1所定义，其互变异构体，立体异构体和盐，特别是其与无机或有机物的生理上可接受的盐 具有有价值的药理学性质，优选聚集抑制作用的酸或碱，以及含有这些化合物的药物及其制备方法。

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