[(2R,3S,4R,5R)-5-(2-amino-6-oxo-3H-purin-9-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen phosphate

CpG

鸟嘌呤

D-核糖