Synlett 2013; 24(3): 317-322
DOI: 10.1055/s-0032-1317790
cluster
© Georg Thieme Verlag Stuttgart · New York

Development of a Practical Synthesis of 4-[6-(Morpholinomethyl)-pyridin-3-yl]naphthalen-1-amine, a Key Intermediate for the Synthesis of BIRB 1017, a Potent p38 MAP Kinase Inhibitor

Bruce Z. Lu*
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Guisheng Li*
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Sonia Rodriguez
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Jianxu Liu
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Magnus C. Eriksson
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Zhulin Tan
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Jinhua J. Song
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Nathan K. Yee
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
,
Vittorio Farina*
b   Janssen Pharmaceutica, Turnhoutseweg 30, 2340 Beerse, Belgium
,
Chris H. Senanayake*
a   Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, P.O. Box 368, Ridgefield, CT 06877-0368, USA   Fax: +1(203)8375283   Email: bruce.lu@boehringer-ingelheim.com   Email: guisheng.li@boehringer-ingelheim.com   Email: chris.senanayake@boehringer-ingelheim.com
› Author Affiliations
Further Information

Publication History

Received: 26 November 2012

Accepted after revision: 18 December 2012

Publication Date:
11 January 2013 (online)


Abstract

The development of synthetic routes to 4-[6-(morpholinomethyl)pyridin-3-yl]naphthalen-1-amine, the key intermediate of p38 MAP kinase inhibitor BIRB 1017, via (1) trialkylmagnesium ate complex mediated metalation and borylation followed by Suzuki coupling reactions and (2) pyridine-ring formation from a vinamidinium salt, is described.

 
  • References and Notes

    • 1a Regan J, Capolino A, Cirillo PF, Gilmore T, Graham AG, Hickey E, Kroe RR, Madwed J, Moriak M, Nelson R, Pargellis CA, Swinamer A, Torcellini C, Tsang M, Moss N. J. Med. Chem. 2003; 46: 4676 ; and references cited therein
    • 1b Moss N, Breitfelder S, Betageri R, Cirillo PF, Fadra T, Hickey ER, Kirrane T, Kroe RR, Madwed J, Nelson RM, Pargellis CA, Qian KC. Bioorg. Med. Chem. Lett. 2007; 17: 4242
    • 1c Breitfelder S, Cirillo PF, Regan JR. WO 2002083642 A1, 2002
    • 2a Iida T, Wada T, Tomimoto K, Mase T. Tetrahedron Lett. 2001; 42: 4841
    • 2b Kitagawa K, Inoue A, Shinokubo H, Oshima K. Angew. Chem. Int. Ed. 2000; 39: 2481
    • 2c Inoue A, Kitagawa K, Shinokubo H, Oshima K. J. Org. Chem. 2001; 66: 4333
    • 2d Dumouchel S, Mongin F, Trécourt F, Quéguiner G. Tetrahedron Lett. 2003; 44: 2033
    • 2e Dumouchel S, Mongin F, Trécourt F, Quéguiner G. Tetrahedron 2003; 59: 8629
    • 2f Mase T, Houpis IN, Akao A, Dorziotis I, Emerson K, Hoang T, Iida T, Itoh T, Kamei K, Kato S, Kato Y, Kawasaki M, Lang F, Lee J, Lynch J, Maligres P, Molina A, Nemoto T, Okada S, Reamer R, Song JZ, Tschaen D, Wada T, Zewge D, Volante RP, Reider PJ, Tomimoto K. J. Org. Chem. 2001; 66: 6775
    • 2g Gallou F, Haenggi R, Hirt H, Marterer W, Schaefer F, Seeger-Weibel M. Tetrahedron Lett. 2008; 49: 5024

      For reviews on Suzuki coupling, see:
    • 3a Miyaura N, Suzuki A. Chem. Rev. 1995; 95: 2457
    • 3b Suzuki A. J. Organomet. Chem. 1999; 576: 147

      Examples of Suzuki coupling using crude boronic acid:
    • 4a Zhao D, Xu F, Chen C.-y, Tillyer RD, Grabowski EJ, Reider PJ. Tetrahedron 1999; 55: 6001
    • 4b Franz AW, Müller TJ. J. Synthesis 2008; 1121
  • 6 Pratt JR, Massey WD, Pinkerton FH, Thames SF. J. Org. Chem. 1975; 40: 1090
  • 7 The distribution of these boron species varies depending upon equivalents and addition order of trimethylborate, as well as the temperature.
    • 8a Chai DI, Lautens M. J. Org. Chem. 2009; 74: 3054
    • 8b Fors BP, Krattiger P, Strieter E, Buchwald SL. Org. Lett. 2008; 10: 3505
  • 9 Song JJ, Yee NK, Tan Z, Xu J, Kapadia SR, Senanayake CH. Org. Lett. 2004; 6: 4905
    • 10a Kaiser E. Tetrahedron 1983; 39: 2055
    • 10b Vyvyan JR, Brown RC, Woods BP. J. Org. Chem. 2009; 74: 1374
    • 10c Bubnov YN, Klimkina EV, Ignetenko AV, Gridnev ID. Tetrahedron 1996; 37: 1317
    • 10d Richey HG. Jr, Farkas JJr. Tetrahedron Lett. 1985; 26: 275
    • 11a Farina V, Li G, Liu J, Lu Z.-H, Rodriguez S, Shen M. WO 2007044490 A2 20070419, 2007
    • 11b Kii S, Akao A, Iida T, Mase T, Yasuda N. Tetrahedron Lett. 2006; 47: 1877
    • 12a Marcoux J.-F, Marcotte F.-A, Wu J, Dormer PG, Davies IW, Hughes D, Reider PJ. J. Org. Chem. 2001; 66: 4194
    • 12b For the preparation of vinamidinium salts, see: Davies IW, Marcoux J.-F, Corley EG, Journet M, Cai D.-W, Palucki M, Wu J, Larsen RD, Rossen K, Pye PJ, DiMichele L, Dormer P, Reider PJ. J. Org. Chem. 2000; 65: 8415