1H-Imidazo(1,2-a)purine-7-butanoic acid, 4,9-dihydro-beta-hydroxy-alpha-((methoxycarbonyl)amino)-4,6-dimethyl-9-oxo-, methyl ester 70363-52-9 Hydroxy-Y base alpha-(Carboxyamino)-beta-hydroxy-4,9-dihydro-4,6-dimethyl-9-oxo-1H-imidazo(1,2-a)purine-7-butyric acid dimethyl ester