Four N 7-alkoxy-benzyl-substituted 4,5,6,7-tetra-hydro-1H- pyrazolo[3,4-b]pyridine-5-spiro-1′-cyclo-hexane-2′,6′-diones: Hydrogen-bonded supra-molecular structures in zero, one, two or three dimensions

1. Trilleras, J.
2. Quiroga, J.
3. Cobo, J.
4. Low, J.N.
5. Glidewell, C.