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Process for making 5-lipoxygenase inhibitors havin

2023-09-30 来源:步旅网
专利内容由知识产权出版社提供

专利名称:Process for making 5-lipoxygenase inhibitors

having varied heterocyclic ring systems

发明人:Norris, Timothy, Pfizer Inc.,Lambert, John

Francis, Pfizer Inc.,Hnatow, Megan Elizabeth

申请号:EP00307014.1申请日:20000816公开号:EP1081143A1公开日:20010307

摘要:A novel process intermediate, tetrahydro-4-[3-(4-fluorophenyl)thio]phenyl-2H-pyran-4-carboxamide, of the formula: is described, as well as its use in a process ofpreparing 5-lipoxygenase inhibitors of the formula: which comprises establishing areaction mixture consisting of: - and - an electron deficient monocyclic or benzo-fusedbicyclic N-heterocycle containing two nitrogen atoms of the formula: in an aproticsolvent; in the presence of a carbonate of the formula: (M)-CO, where M is an alkali metal,Group 1/Ia element, selected from the group consisting of lithium, Li; sodium,Na;potassium, K; rubidium, Rb; and cesium, Cs; followed by heating of said reaction mixtureunder a nitrogen atmosphere; whereby there is produced the desired compound of theabove-recited formula.

申请人:Pfizer Products Inc.

地址:Eastern Point Road Groton, Connecticut 06340 US

国籍:US

代理机构:Wood, David John

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