摘要 |
The present invention relates to a compound having the general formula (I), a method of preparing the compound, a drug preparation containing the compound, and applications of the compound in preparing drugs used to preventing or treating fibrosis diseases and treating hyperplasia diseases. The ring A, X, R1, R2, R3, R4, R5, R6, R7, R8, R9, a, b, and n are as defined in the description. |