1238696-80-4

Upstream product

• 1238695-54-9 1-(2-fluoro-4-iodophenyl)-5-methoxy-3-(1-phenyl-1H-pyrazol-5-yl)pyridazin-4(1H)-one 
• 363179-66-2 3,3-difluoropiperidine hydrochloride 
• 496807-97-7 3,3-difluoropiperidine hydrochloride 
• 1238701-78-4 3-acetyl-1-(2-fluoro-4-iodophenyl)-5-methoxypyridazin-4(1H)-one 

Relevant academic research and scientific papers

RADIOLABELED COMPOUNDS AND THEIR USE AS RADIOTRACERS FOR QUANTITATIVE IMAGING OF PHOSPHODIESTERASE (PDE10A) IN MAMMALS

The present invention provides radiolabeled compounds useful as radiotracers for quantitative imaging of PDE10A in mammals. The compound of the present invention is represented by the formula (I): wherein each symbols are as defined in the specification.

Pyridazinone compounds

The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0): wherein R1 represents a substituent, R2 represents a hydrogen atom, or a substituent, R3 represents a hydrogen atom, or a substituent, Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.