2-Amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)dihydropteridinetriphosphate 6-(L-erythro-1,2-Dihydroxypropyl 3-triphosphate)-7,8-dihydropterin 6-[(1S,2R)-1,2-Dihydroxy-3-triphosphooxypropyl]-7,8-dihydropterin C04895