p. 3079 - 3085
(2007/10/02)C49H71N15O11S
2-(4-{[8-(1-tert-Butoxycarbonyl-3-methylsulfanyl-propylcarbamoyl)-2-(dimethylamino-methyleneamino)-5-methyl-4-oxo-3,4,5,6,7,8-hexahydro-pteridin-6-ylmethyl]-amino}-benzoylamino)-pentanedioic acid dibutyl ester
2-(4-{[2-(Dimethylamino-methyleneamino)-5-methyl-4-oxo-3,4,5,6,7,8-hexahydro-pteridin-6-ylmethyl]-amino}-benzoylamino)-pentanedioic acid dibutyl ester