909720-27-0

Upstream product

• 163105-89-3 2-methoxy-pyridine-5-boronic acid 
• 50500-58-8 2-benzyl-6-chloropyridazin-3(2H)-one 
• 100-39-0 benzyl bromide 
• 909720-25-8 2-benzyl-6-(6-methoxypyridine-3-yl)-2H-pyridazine-3-one 
• 13472-85-0 2-methoxy-5-bromopyridine 
• 909720-26-9 2-benzyl-6-(7-methoxy-3-methoxycarbonyl-2-isopropyl-pyrazolo[1,5-a]pyridine-4-yl)-3-(2H)-pyridazinone 

Relevant academic research and scientific papers

Pyrazolopyridine-4-Yl Pyridazinone Derivatives and Addition Salts Thereof, and Pde Inhibitors Comprising the Same Derivatives or Salts as Active Ingredient

Novel pyrazolopyridine-4-yl pyridazinone derivatives serve as phosphodiesterase inhibitors and are useful compounds for use in pharmaceutical products. Specifically, the compounds of the present invention are pyrazolopyridine-4-yl pyridazinone derivatives represented by the following general formula (1): (Example: 6-(2-ethyl-7-methoxy-pyrazolo[1,5-a]pyridine-4-yl)-5-methyl-4, 5-dihydro-3(2H)-pyridazinone).