Name: 1,3,5,2,4-TRIOXADISILOCINO7,6-BPYRROLE-7(6H)-CARBOXYLIC ACID 8-(2-AMINO-4,5-DIHYDRO-4-OXO-1H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)TETRAHYDRO-2,2,4,4-TETRAKIS(