The molecule is a coformycin derivative in which the hydroxy group on the diazepine ring of coformycin is replaced by an oxo group. It is a conjugate acid of a dehydrocoformycin(1+).
3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4,7-dihydroimidazo[4,5-d][1,3]diazepin-8-one