上游原料
Methyl 2-(dimethoxyphosphoryl)acetate; Trimethyl phosphoroacetate5,6-diamino-1,3-dipropyl-2,4(1H,3H)-pyrimidinedione4-[(propyloxy)carbonyl]bicyclo[2.2.2]octane-1-carboxylic acid4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)bicyclo[2.2.2]octane-1-carboxylic acidmethyl 4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)bicyclo[2.2.2]octane-1-carboxylate8-[4-(hydroxymethyl)bicyclo[2.2.2]oct-1-yl]-1,3-dipropyl-3,9-dihydro-1H-purine-2,6-dione4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)bicyclo[2.2.2]octane-1-carbaldehydemethyl 3-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)bicyclo[2.2.2]oct-1-yl]-2-propenoate3-[4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)bicyclo[2.2.2]oct-1-yl]-2-propenoic acid