Aryltricyclospirodienones; novel steroid mimics as inhibitors of aromatase

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David Hobbs-Mallyon, Warren Li and Donald A. Whiting


Abstract

The aryltricyclospirodienones 16a, 16b, 16c and 18 have been designed as potential inhibitors of aromatase and are synthesised from 6-methoxytetralone;[hair space]† compounds 16a and 18 have proved effective inhibitors with activities of the same order as aminoglutethimide.


References

  1. Cytochrome P-450; Structure, Mechanism and Biochemistry, ed. P. R. Ortiz de Montellano, Plenum Press, 1986, pp. 217–271 Search PubMed; M. Akhtar, D. E. Stevenson and J. N. Wright, J. Chem. Soc., Perkin Trans. 1, 1988, 2043 Search PubMed; J. Y. Kellis and L. E. Vickery, J. Biol. Chem., 1987, 262, 4413, 8840 RSC; M. Ahkhtar and J. N. Wright, Nat. Prod. Rep., 1991, 527; E. R. Simpson, M. S. Mahendroo, G. D. Means, M. W. Kilgore, M. M. Hinshelwood, S. Graham-Lorence, B. Amarneh, Y. Ito, C. R. Fisher, M. D. Michael, C. R. Mendelson and S. E. Bulun, Endocr. Rev., 1994, 15, 342 RSC.
  2. (a) J. O. Johnston and B. W. Metcalf, Novel Approaches to Cancer Chemotherapy, ed. P. S. Sunkara, Academic Press, 1984, p. 307 Search PubMed; A. Manni and R. J. Santen, Pharmacology and Clinical Uses of Inhibitors of Hormone Secretion, Bailliere-Tindall, 1987, p. 255 Search PubMed; D. F. Covey, Sterol Biosynthesis Inhibitors: Pharmaceutical and Agrochemical Aspects, ed. D. Berg and M. Plempel, Ellis Horwood, 1988, p. 534 Search PubMed; M. H. Brodie, Design of Enzyme Inhibitors as Drugs, ed. M. Sander and H. J. Smith, Oxford University Press, 1989, p. 503 Search PubMed; (b) Inter alia P. K. Siiteri and E. A. Thompson, J. Steroid. Biochem., 1975, 6, 317 Search PubMed; R. W. Bruggemeier, E. E. Floyd and R. E. Councell, J. Med. Chem., 1978, 21, 1007 Search PubMed; D. F. Covey, W. F. Hood and V. D. Parikh, J. Biol. Chem., 1981, 256, 1076 CrossRef; B. W. Metcalf, C. L. Wright, J. P. Burkhart and J. O. Johnston, J. Am. Chem. Soc., 1981, 103, 3221 CAS; P. A. Marcotte and C. H. Robinson, Biochemistry, 1982, 21, 2773 CrossRef CAS; P. R. Ortiz de Montellano, K. L. Kunze, H. S. Beilan and C. Wheeler, Biochemistry, 1982, 21, 1331 CrossRef CAS; M. G. B. Drew, J. Mann and B. Pietrzak, J. Chem. Soc., Chem. Commun., 1985, 1191 CrossRef; J. N. Wright, M. R. Calder and M. Akhtar, J. Chem. Soc., Chem. Commun., 1985, 1733 RSC; L. Tan and A. Petit, Biochem. Biophys. Res. Commun., 1985, 128, 613 RSC; M. J. Shih, M. H. Carrell, H. L. Carrell, C. L. Wright, J. O. Johnston and C. H. Robinson, J. Chem. Soc., Chem. Commun., 1987, 213 CAS; W. E. Childers and C. H. Robinson, J. Chem. Soc., Chem. Commun., 1987, 320 RSC; J. T. Kellis, Jr, W. E. Childers, C. H. Robinson and L. E. Vickery, J. Biol. Chem., 1987, 262, 4421 RSC; M. Akhtar, J. N. Wright, P. T. van Leersum and S. G. Chamberlin, J. Chem. Soc., Perkin Trans. 1, 1989, 1647 CAS; P. A. Cole and C. H. Robinson, J. Med. Chem., 1990, 33, 2933 RSC; J. Am. Chem. Soc., 1991, 113, 8130 CrossRef CAS; R. W. Bruggemeier, Breast Cancer Res. Treat., 1994, 30, 31 CrossRef CAS; H. V. Bossche, H. Moereels and L. M. H. Koymans, Breast Cancer Res. Treat., 1994, 30, 43 Search PubMed; J. Geelen, H. J. J. Loozen, G. H. Deckers, R. Deleeuw, H. J. Kloosterboer and S. W. J. Lamberts, J. Steroid Biochem. Mol. Biol., 1993, 44, 681 CrossRef; W. Wouters, E. Snoeck and R. Decoster, Breast Cancer Res. Treat., 1994, 30, 89 CrossRef; P. V. Plourde, M. Dyroff and M. Dukes, Breast Cancer Res. Treat., 1994, 30, 103 CrossRef CAS; A. Lipton, L. M. Demers, H. A. Harvey, K. B. Kambic, H. Grossberg, C. Brady, H. Adlercruetz, P. F. Trunet, R. J. Santen, P. V. Plourde, M. Dyroff and M. Dukes, Cancer, 1995, 75, 2132 CrossRef CAS; N. Oohata, Y. Hori, Y. Yamagishi, T. Fujita, S. Takase, M. Yamashita, H. Terano and M. Okuhara, J. Antibiot., 1995, 48, 757 CrossRef CAS; M. Lourdusamy, F. Labrie and S. M. Singh, Synth. Commun., 1995, 25, 3655 CAS; H. I. Holland, S. Kumaresan and G. Lakshmaiah, Can. J. Chem., 1995, 73, 2185 CAS; E. J. T. Dasilva, M. L. S. E. Melo and A. S. C. Neves, J. Chem. Soc., Perkin Trans. 1, 1996, 1649 CrossRef CAS; V. C. O. Njar, J. Duerkop and R. W. Hartmann, Steroids, 1996, 61, 138 CAS.
  3. C. Geynet, C. Millet, H. Truong and E. E. Baulieu, Gynaecol. Invest., 1972, 3, 2 Search PubMed; V. C. Jordan and B. Gosden, Mol. Cell. Endrocrinol., 1982, 27, 291 Search PubMed.
  4. We acknowledge valuable discussions with, and personal communications from, Dr F. T. Boyle, Zeneca Pharmaceuticals, Alderly Park, Macclesfield, UK.
  5. D. F. Covey and W. F. Hood, Cancer Res., Suppl., 1982, 42, 3327 Search PubMed; G. A. Flynn, J. O. Johnston, C. L. Wright and B. W. Metcalf, Biochem. Biophys. Res. Commun., 1981, 103, 913 CrossRef CAS.
  6. Energy minimisations were estimated using MacroModel, version 4.0, with MM2 force field parameters, and employing ‘Monte Carlo’ global searches; we thank Dr M. Luszniak for these calculations.
  7. O. Hares, D. Hobbs-Mallyon and D. A. Whiting, J. Chem. Soc., Perkin Trans. 1, 1993, 1481 RSC.
  8. N. Campbell and D. Kidd, J. Chem. Soc., 1954, 2154 Search PubMed.
  9. F. M. Dean and K. B. Hindley, Tetrahedron Lett., 1972, 15, 1445 CrossRef.
  10. A. S. Hussey and R. R. Herr, J. Org. Chem., 1959, 24, 843 CrossRef CAS.
  11. J. K. Stille and R. A. Newsom, J. Org. Chem., 1961, 26, 1375 CrossRef CAS.
  12. A generous gift of this material from Zeneca Pharmaceuticals is acknowledged.
  13. These assays were conducted by courtesy of Professor P. J. Nicholls, Welsh School of Pharmacy, University of Wales, Cardiff, to whom we express our thanks. Aromatase activity was measured by the release of 3H2O from (1β-3H)androstendione (0.4 µM) on incubation with placental microsomes (0.15 mg protein ml–1) at pH 7.4 and 35 °C for 5 min (Km for aromatase 25 nM). Final inhibitor concentrations 5 × 10–6M were employed.
  14. E. A. Thompson, Jr and P. K. Siiteri, J. Biol. Chem., 1974, 249, 5373 CAS; P. E. Graves and H. A. Salhanick, Endocrinology, 1979, 105, 52 Search PubMed; C. A. Laughton, R. McKenna, S. Neidle, M. Jarman, R. McCague and M. G. Rowlands, J. Med. Chem., 1990, 33, 2673 CrossRef CAS.
  15. T. R. Kasturi and T. Arunachalam, Can. J. Chem., 1968, 46, 3625 CAS.
  16. D. Lednicer, J. C. Babcock, S. C. Lyster and G. W. Duncan, Chem. Ind., 1963, 408 Search PubMed.
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