166374-48-7 1H-Purine-2,6-dione, 3,7-dihydro-8-(1S,2R,4S,5S,6R)-3-oxatricyclo(3.2.1.02,4)oct-6-yl-1,3-dipropyl- 8-(1S,2R,4S,5S,6R)-3-Oxatricyclo(3.2.1.02,4)oct-6-yl-1,3-dipropyl-3,7-dihydro-1H-purine-2,6-dione