1 VNR 1-deoxy-1-[(4ar)-4a-[(2z)-2-(2-{[(S)-hydroxy(phosphonooxy)phosphoryl]oxy}ethyl)but-2-en-1-yl]-7,8-dimethyl-2,4-dioxo-3,4,4a,5-tetrahydrobenzo[G]pteridin-10(2h)-yl]-5-O-phosphono-D-ribitol 1.000 2 OOP 1-deoxy-1-[(4ar)-4a-[(2r)-1-hydroxy-5-{[(S)-hydroxy(phosphonooxy)phosphoryl]oxy}-3-methylidenepentan-2-yl]-7,8-dimethyl-2,4-dioxo-3,4,4a,5-tetrahydrobenzo[G]pteridin-10(2h)-yl]-5-O-phosphono-D-ribitol 0.938