156595-84-5 Dpmabg L-Glutamic acid, N-(4-(((2,4-diaminofuro(2,3-d)pyrimidin-5-yl)methyl)amino)benzoyl)- N-(4-(N-((2,4-Diaminofuro(2,3-d)pyrimidin-5-yl)methyl)amino)benzoyl)glutamic acid