The present invention relates to a nitrogen-containing heterocyclic derivative inhibitor, and a preparation method therefor and the use thereof. In particular, the present invention relates to a compound as represented by general formula (I), a preparation method therefor, a pharmaceutical composition containing the compound, and the use thereof as an inhibitor in the treatment of diseases such as cardiovascular diseases and cerebrovascular diseases, wherein the definition of each substituent in general formula (I) is the same as that defined in the description.