The article presents a study on the transformation of 2-hydroxy-3,5-dinitropyridine into tricyclic bispidine derivatives via nucleophilic addition of acetone carbodianion and double Mannich condensation. The study used 2-Hydroxy-3,5-dinitropyridine that was synthesized by nitration of 2-hydroxypyridine. treatment of 2-hydroxy-3,5-dinitropyridine (I) in acetone leads to the formation of 6-substituted 4,8-dinitro-2,6- diazatricyclo[6.4.0.04,9]dodecane-3,11-diones IIIa and IIIb.