title: Chemistry of dihydropterins and tetrahydropterins.
mesh_terms: D004093:Dihydropteridine Reductase / Q000378:metabolism; D006801:Humans; D010651:Phenylalanine Hydroxylase / Q000378:metabolism; D011621:Pteridines; D011622:Pterins; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship
chemical_list: D011621:Pteridines; D011622:Pterins; D010651:Phenylalanine Hydroxylase; D004093:Dihydropteridine Reductase