35068-28-1 4(1H)-Pteridinone, 2-amino-6-(hydroxy(2-hydroxy-1,3,2-dioxaphospholan-4-yl)methyl)-, P-oxide, (R-(R*,S*))- D-erythro-Neopterin 2',3'-cyclic phosphate Neopterin 2',3'-cyclic phosphate