%0 Journal Article %T Approaches to the Preparation of 6- and 7-Methyl-8-Substituted Pterins: Part 1. The Effect of Reaction Conditions on Isomer Distribution and a Novel Approach to Isomer Separation %A IVERY, Michael T. G. %A GREADY, Jill E. %J Biological Chemistry Hoppe-Seyler %V 373 %N 2 %@ 0177-3593 %D 1992-01-01 %I Walter de Gruyter %~ DeepDyve