4.6 Article

Conformational Analysis of the Anti-obesity Drug Lorcaserin in Water: How To Take Advantage of Long-Range Residual Dipolar Couplings

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume 19, Issue 44, Pages 14989-14997

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201202509

Keywords

conformation analysis; anti-obesity drugs; NMR spectroscopy; residual dipolar couplings

Funding

  1. NSF [CHE-0130903, CHE-1039870, CHE-1111684]
  2. Ministerio de Ciencia e Innovacion
  3. Spanish institutions Xunta de Galicia/FEDER [2009/071]
  4. Ministerio de Ciencia e Innovacion/FEDER [CTQ2011-28831]
  5. Direct For Mathematical & Physical Scien
  6. Division Of Chemistry [1111684] Funding Source: National Science Foundation
  7. Division Of Chemistry
  8. Direct For Mathematical & Physical Scien [1039870] Funding Source: National Science Foundation

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The conformational state of 8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride (lorcaserin) in water has been determined on the basis of one-bond and long-range C-H residual dipolar coupling (RDC) data along with DFT computations and (3)J(HH) coupling-constant analysis. According to this analysis, lorcaserin exists as a conformational equilibrium of two crown-chair forms, of which the preferred conformation has the methyl group in an equatorial orientation.

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