2-(5-(2,2-Bis(ethoxycarbonyl)vinylamino)-2-methoxyphenyl)-8-azapurin-6-one triethanolamine Propanedioic acid, (((3-(4,7-dihydro-7-oxo-1H-1,2,3-triazolo(4,5-d)pyrimidin-5-yl)-4-methoxyphenyl)amino)methylene)-, diethyl ester, compd. with 2,2',2''-nitrilotris(ethanol) TY2485604