SMILES: COC1=C(C=CC(=C1)C2=NNC(=O)C=C2)OC(F)F
Description: The molecule is a pyridazinone derivative in which pyridazin-3(2H)-one is substituted at C-6 with a 4-(difluoromethoxy)-3-methoxyphenyl group. It is a phosphodiesterase inhibitor, selective for PDE3 and 4. It has a role as an EC 3.1.4.* (phosphoric diester hydrolase) inhibitor, a peripheral nervous system drug, an anti-asthmatic drug and a bronchodilator agent. It is an organofluorine compound and a pyridazinone.