p. 3079 - 3085
(2007/10/02)2-{4-[(2-Amino-5-methyl-4-oxo-3,4,5,6,7,8-hexahydro-pteridin-6-ylmethyl)-amino]-benzoylamino}-pentanedioic acid dibutyl ester
N-imidazocarbonylmethinonine t-butyl 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
L-methionine-tert-butyl-ester.HCl
5-methyldihydrofolic acid