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Fluorine containing 2,4,5-triphenylimidazoles: Fluorine containing 2,4,5-triphenylimidazoles. Jorgensen, Dan; Dyrsting, Hjarne (Aktieselskabet Dumex, Den.). U.S.In this study， 2646-91-5 and 55864-31-8 are also used. US 4424229 A 3 Jan 1984, 7 pp. Cont.-in-part of U.S. Ser. No. 32,691, abandoned. (English). (United States of America). CODEN: USXXAM. CLASS: IC: A61K031-415; C07D233-56. NCL: 424273000R. APPLICATION: US 82-356643 10 Mar 1982. PRIORITY: US 79-32691 23 Apr 1979. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 1 2-(2,4-Difluorophenyl)-4,5-bis(4-methoxyphenyl)imidazole (I) was prepd. from 2,4-F2C6H3CHO, NH4OAc, and a benzil deriv. A mixt. of 2,4-F2C6H3CHO, NH4OAc, and p-anisil in HOAc was refluxed to give I. Similarly prepd. were other 2-(fluorophenyl)- and 2-(difluorophenyl)-4,5-bis(4-methoxyphenyl)imidazoles. The compds. prepd. showed analgesic antiinflammatory, antipyretic, and bronchodilator activity, they inhibited blood platelet aggregation, and they inhibited prostaglandin synthesis. .