title: [Synthesis of pyrazolone derivatives. 18. Synthesis of 1,2,4,5,6,7-hexahydro-3H-pyrazolo(4,3-c)pyridines].
mesh_terms: D005557:Formaldehyde; D005561:Formates; D011720:Pyrazoles / Q000138:chemical synthesis*; D011725:Pyridines / Q000138:chemical synthesis*; D013057:Spectrum Analysis
chemical_list: D005561:Formates; D011720:Pyrazoles; D011725:Pyridines; D005557:Formaldehyde