L-818571
Chemical Name: 2-(Cyclopropylmethyl)-4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]pyridazin-3(2H)-one
CAS No. 213763-92-9
项目整合开发状态: Preclinical
项目研究机构: Merck Frosst (Originator)
合成路线:Cyclization of hydroxyfuranone (I) with hydrazine in refluxing EtOH produced the pyridazinone (II),which was subsequently alkylated with cyclopropylmethyl bromide (III) in the presence of NaOH to afford the title compound.
📌 参考资料/链接:
参考文献标题:Pyridazinones as inhibitors of cyclooxygenase-2
文献作者:Therien,M.; Li,C.S.; Lau,C.K.; Prasit,P.; Gauthier,J.Y.(Merck Frosst Canada Inc.)
参考来源:EP 0975604; US 6004960; WO 9841511