Synthesis, Table of Contents PAPER © Georg Thieme Verlag Stuttgart · New York Formation of Two 4-Imidazolylmethylphosphonium Salts and their Synthetic Studies Toward Histamine H3-Ligands Shinya Harusawaa, Makoto Kawamuraa, Shuji Koyabua, Tomoko Hosokawaa, Lisa Arakia, Yasuhiko Sakamotob, Takeshi Hashimotoc, Yumiko Yamamotoc, Atsushi Yamatodanic, Takushi Kurihara*a a Osaka University of Pharmaceutical Sciences, 4-20-1, Nasahara, Takatsuki, Osaka 569-1094, JapanFax: +81(72)6901086; e-Mail: kurihara@gly.oups.ac.jp; b R&D Division, AZWELL, Inc., 2-24-3, Sho, Ibaraki, Osaka 567-0806, JapanFax: +81(72)6224999; e-Mail: ya-sakamoto@azwell.co.jp; c Graduate School of Allied Health Sciences, Faculty of Medicine, Osaka University, Osaka 565-0871, JapanFax: +81(6)68792562; e-Mail: yamatoda@sahs.med.osaka-u.ac.jp; Recommend Article Abstract Buy Article All articles of this category Abstract A simple and convenient preparation of {[1H-imidazol-4(5)-yl]methyl}triphenylphosphonium chloride (5) is described. The phosphonium salt 5 could be applied to the synthesis of 1-[1H-imidazol-4(5)-yl]-5-arylpentan- or 6-arylhexan-3-ones 4a-d exhibiting histamine H3-antagonistic activities via a 1,3-diazafulvene intermediate 6 generated from 5. Further, two-methylene-enlongated homolog 3 of imifuramine was efficiently synthesized, starting from Wittig olefination of aldehyde 24 using [(1-tritylimidazol-4-yl)methyl]triphenylphosphonium chloride 7. Key words imidazole - histamine H3-ligand - phosphonium salts - diazafulvene - Wittig olefination Full Text References References 1 Grimmett MR. In Comprehensive Heterocyclic Chemistry II: Imidazoles Vol. 3: Katritzky AR. Rees CW. Scriven EF. Pergamon; Oxford: 1996. p.77-220 For reviews, see: 2a Stark H. Schlicker E. Schunack W. Drugs Future 1996, 21: 507 2b Leurs R. Blandian P. Tedford C. Timmerman H. TIPS 1998, 19: 177 2c Watanabe T. Timmerman H. Yanai K. Histamine Reseach in the New Millennium Elsevier; Amsterdom: 2001. 3 For a review, see: Hough LB. Mol. Pharmacol. 2001, 59: 415 4a Harusawa S. Imazu T. Takashima S. Araki L. Ohishi H. Kurihara T. Yamamoto Y. Yamatodani A. Tetrahedron Lett. 1999, 40: 2561 4b Harusawa S. Imazu T. Takashima S. Araki L. Ohishi H. Kurihara T. Sakamoto Y. Yamamoto Y. Yamatodani A. J. Org. Chem. 1999, 64: 8608 5 Hashimoto T. Harusawa S. Araki L. Zuiderveld OP. Smit MJ. Imazu T. Takashima S. Yamamoto Y. Sakamoto Y. Kurihara T. Leurs R. Bakker R. Yamatodani A. J. Med. Chem. 2003, 46: 3162 6a Vollinga RC. Menge WMPB. Leurs R. Timmerman H. J. Med. Chem. 1995, 38: 266 6b Vollinga RC. Menge WMPB. Leurs R. Timmerman H. J. Med. Chem. 1995, 38: 2244 6c De Esch IJP. Gaffar A. Menge WMPB. Timmerman H. Bioorg. Med. Chem. 1999, 7: 3003 6d Kazuta Y. Hirano K. Natsume K. Yamada S. Kimura R. Matsumoto S. Furuichi K. Matsuda A. Shuto S. J. Med. Chem. 2003, 46: 1980 7 Harusawa S. Koyabu S. Inoue Y. Sakamoto Y. Araki L. Kurihara T. Synthesis 2002, 1072 8a Lassalle G, Purcell T, Galtier D, Williams PH, and Galli F. inventors; Eur. Pat. Appl., EP 565396. 8b Perard S, Zard L, and Rossey G. inventors; Eur. Pat. Appl., EP 614986. 8c Lassalle G, Galtier D, and Galli F. inventors; Eur. Pat. Appl., EP 643047. 8d Galtier D, and Lassalle G. inventors; Eur. Pat. Appl., EP 643046. 8e Lassalle G, Galtier D, and Galli F. inventors; Fr Demande., FR 2710067. 8f Lassalle G, Purcell T, Galtier D, Williams PH, and Galli F. inventors; US Pat., US 5453430. 8g Yokohama S, Takeda Y, Kawakoshi K, and Yamamoto K. inventors; Jpn. Kokai Tokkyo Koho, JP 11279156. 9a Bruice TC. Herz JL. J. Am. Chem. Soc. 1964, 86: 4109 9b Harusawa S. Murai Y. Moriyama H. Imazu T. Ohishi H. Yoneda R. Kurihara T. J. Org. Chem. 1996, 61: 4405 10a Coates IH, Charles NP, and William OA. inventors; Eur. Pat. Appl., EP 306323. 10b Cordi AA. Snyers MP. Giraud-Mangin D. Van der Maesen C. Van Hoeck JP. Beuze S. Ellens E. Napora F. Gillet CL. Gorissen H. Calderon P. Remacle MD. Janssens de Varebeke P. Van Dorsser W. Roba J. Eur. J. Med. Chem. 1990, 25: 557 11a Zbiral E. Hugl E. Phosphorus 1972, 2: 29 11b Zbiral E. Synthesis 1974, 775 11c Webb RL. Lewis JJ. J. Heterocycl. Chem. 1981, 18: 1301 12a Staab HA. Datta AP. Angew. Chem., Int. Ed. Engl. 1964, 3: 132 12b Devos A. Remion J. Frisque-Hesbain AM. Colens A. Ghosez L. J. Chem. Soc., Chem. Commun. 1979, 1180 12c Villeneuve GB. Chan TH. Tetrahedron Lett. 1997, 38: 6489 13 Chaturvedi N. Goodman M. Bowers C. Int. J. Peptide Protein Res. 1981, 17: 72 14 Huckin SN. Weiler L. J. Am. Chem. Soc. 1974, 96: 1082 15a Vollinger RC. Zuiderveld OP. Scheerens H. Bast A. Timmerman H. Methods Find Exp. Clin. Pharmacol. 1992, 14: 747 15b Hashimoto T. Hidaka R. Yamamoto Y. Harusawa S. Araki L. Kurihara T. Sakamoto Y. Yamatodani A. Inflamm. Res. 2003, in press 16 Koert U. Stein M. Wagner H. Liebings Ann. 1995, 1415 17 Dess-Martin periodinane was purchased from Lancaster or Aldrich. 18a Frigerio M. Santagostino M. Sputore S. Palmisano G. J. Org. Chem. 1995, 60: 7272 18b Frigerio M. Santagostino M. Tetrahedron. Lett. 1994, 35: 8019 18c Dess DB. Martin JC. J. Am. Chem. Soc. 1991, 113: 7277 19 Bonnet B. Soullez D. Girault S. Maes L. Landry V. Davioud-Charvet E. Sergheraert C. Bioorg. Med. Chem. 2000, 8: 95