The present invention relates to compounds having cytostatic activity against tumor cells. The compounds of the invention are of formula (I), or derivatives hereof, wherein R
0
, R
1
, R
2
, A, and X have defined meanings as described in claim
1
.
本发明涉及具有抗肿瘤细胞细胞毒活性的化合物。本发明的化合物属于式(I)的化合物,或其衍
生物,其中R0、R1、R2、A和X的定义如权利要求书中所述。