| 摘要 |
Compounds having the general formula (I): <CHEM> wherein: R<1> is hydrogen or fluorine; R<2> is hydroxy, aminocarbonyl, methylaminocarbonyl, dimethylaminocarbonyl, acetylamino or methanesulfonylamino; and the pharmaceutically acceptable salts thereof are useful in potentiating the antineoplastic activity of known oncolytic drugs. |
