4H-pyrrolo(2,3-d)pyrimidin-4-one, 2-amino-5-((((1S,4S,5R)-4,5-dihydroxy-2-cyclopenten-1-yl)amino)methyl)-1,7-dihydro- 7-(3,4-trans-4,5-cis-dihydroxy-1-cyclopenten-3-ylaminomethyl)-7-deazaguanine QUEUINE base Q