The molecule is a nucleoside 3',5'-cyclic phosphate that is cAMP in which the aza methine (C-H) group at positions 7 and 8 on the purine fragment are transposed. It is a nucleoside 3',5'-cyclic phosphate and a pyrazolopyrimidine.
(4aR,6R,7R,7aS)-6-(4-aminopyrazolo[3,4-d]pyrimidin-1-yl)-2-hydroxy-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-7-ol