N-(1-((2,4-diamino-6-pteridinyl)methyl)-3,4-dihydro -2H-1,4-benzothiazine-7-carbonyl)-L-2-aminoadipic acid
n-(1-((2,4-diamino-6-pteridinyl)methyl)-3,4-dihydro -2h-1,4-benzothiazine-7-carbonyl)-l-2-aminoadipic acid