15839-70-0 2-amino-9-[3,4-dihydroxy-5-[[hydroxy-[hydroxy-(3,4,5-trihydroxy- 6-methyl-tetrahydropyran-2-yl)oxy-phosphinoyl]oxy-phosphinoyl] oxymethyl]tetrahydrofuran-2-yl]-1,9-dihydropurin-6-one GDP-L-fucose GUANOSINE_DIPHOSPHATE_FUCOSE guanosine 5'-(trihydrogen diphosphate), P'-(6-deoxy-beta-L- galactopyranosyl) ester guanosine diphosphate fucose