The molecule is a nucleoside 3',5'-cyclic phosphate derived from formycin A. It is a nucleoside 3',5'-cyclic phosphate, a ribonucleotide, a C-glycosyl compound and a pyrazolopyrimidine. It derives from a formycin A.
(4aR,6S,7S,7aS)-6-(7-amino-2H-pyrazolo[4,3-d]pyrimidin-3-yl)-2-hydroxy-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-7-ol