Olaparib763113-22-0100 % similar 2-Fluoro-5-(4-oxo-3,4-dihydrophthalazin-1-ylmethyl)benzoic acid763114-26-761 % similar Azd24611174043-16-350 % similar 5-[(3,4-Dihydro-4-oxo-1-phthalazinyl)methyl]-2-fluorobenzonitrile1021298-68-949 % similar