abstract |
The invention relates to a phthalazinone derivative, its preparation method and application in medicament, particularly relates to a novel phthalazinone derivative of formula (I), its preparation method, a pharmaceutical composition containing the phthalazinone derivative, and an application of the phthalazinone derivative as a therapeutic agent, especially as a poly(ADP-ribose) polymerase (PARP) inhibitor. |