| 摘要 |
A compound for use in the treatment of proliferative disorders, such as cancer, having the following formula:z wherein: R1, R2 and R3 are independently H or lower alkyl; R4, R5, R6, R7 and R8 are independently H, halo, lower alkyl or -O-lower alkyl, provided that at least one is -O-lower alkyl; or at least one pair of R4 to R8, the members of which pair are adjacent to one another on the ring, are conjoined to form-0-(CR14R15)n-O-, where n is 1 or 2 and R14 and R15 are independently H or lower alkyl, and the remainder of R4 to R8 are independently H, halo, lower alkyl or -O-lower alkyl; and R9, R10, R11, R12 and R13 are independently H, halo, lower alkyl or -O-lower alkyl, provided that at least one is -O-lower alkyl; or at least one pair of R9 to R13, the members of which pair are adjacent to one another on the ring, are conjoined to form-O-(CR16R17)m-O-, where m is 1 or 2 and R16 and R17 are independently H or lower alkyl, and the remainder of R9 to R13 are independently H, halo, lower alkyl or -O-lower alkyl.
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