This invention relates to certain spirocyclic compounds substituted with both basic and acidic functionality, as shown by formula (I): 
wherein Q, L, Ai, Bj, R0, R3, R10, m, n, p and q are as defined in the disclosure, which are useful in inhibiting of platelet aggregation.
                            这项发明涉及某些
螺环化合物,其带有既基本功能又酸性功能,如公式(I)所示:其中Q、L、Ai、Bj、R0、R3、R10、m、n、p和q如披露中所定义,这些化合物在抑制血小板聚集方面具有用途。