| 摘要 |
A vascularization inhibitor containing a compound represented by general formula (I), wherein R1 represents lower alkyl, alkoxycarbonyl or carboxyl; and R2, R3 and R4 may be the same or different from one another and each represents hydrogen, hydroxy, methoxy or acetoxy. This compound has a significant vascularization inhibitor effect and is useful as a vascularization inhibitor for treating various diseases. <CHEM> |
