3,4-Dihydro-1-(hydroxymethyl)-5,7-dimethyl-4-oxo-6-phthalazinecarboxylic acid ethyl ester 7-Ethoxycarbonyl-1,2-dihydro-4-hydroxymethyl-6,8-dimethylphthalazin-1-one EG-626 Nsc305351 Oxagrelate phthalazinol 6-Phthalazinecarboxylic acid, 3,4-dihydro-1-(hydroxymethyl)-5,7-dimethyl-4-oxo-, ethyl ester