Probing heterocycle conformation with residual dipolar couplings

被引:28
作者
Gayathri, Chakicherla [1 ]
de la Fuente, M. Carmen [2 ]
Luy, Burkhard [3 ]
Gil, Roberto R. [1 ]
Navarro-Vazquez, Armando [4 ]
机构
[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
[2] Univ Santiago Compostela, Fac Quim, Dept Quim Organ, Compostela 15782, Spain
[3] Tech Univ Munich, Dept Chem, Lehrstuhl Organ Chem 2, D-85747 Garching, Germany
[4] Univ Vigo, Dept Quim Organ, Vigo 36310, Spain
关键词
ALIGNMENT MEDIA; RDCS; GELS; NMR; STEREOCHEMISTRY; CYCLIZATION; TOOL;
D O I
10.1039/c0cc01271h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Residual dipolar couplings (RDCs) obtained in a stretched polydimethylsiloxane gel are applied to determine the 7-membered ring conformation in a 2-phenyl-3-benzazepine derivative, and to simultaneously assign all methylene proton pairs using only (1)D(CH) RDCs and DFT molecular modelling data.
引用
收藏
页码:5879 / 5881
页数:3
相关论文
共 23 条
[1]   CONFORMATIONAL-ANALYSIS OF 2,3,6,7-TETRAHYDROAZEPINES WITH IMPLICATIONS FOR D1-SELECTIVE BENZAZEPINES [J].
ALKORTA, I ;
VILLAR, HO ;
CACHAU, RE .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1993, 14 (05) :571-578
[2]   Validation of protein structure from anisotropic carbonyl chemical shifts in a dilute liquid crystalline phase [J].
Cornilescu, G ;
Marquardt, JL ;
Ottiger, M ;
Bax, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (27) :6836-6837
[3]   MODES OF INTERCONVERSION IN CYCLOHEPTENE RING [J].
FAVINI, G ;
NAVA, A .
THEORETICA CHIMICA ACTA, 1973, 31 (03) :261-268
[4]   ARYL-RADICAL CYCLIZATION ONTO AN ENAMIDE DOUBLE-BOND - A ROUTE TO BENZ[D]INDENO[1,2-B]AZEPINES [J].
FIDALGO, J ;
CASTEDO, L ;
DOMINGUEZ, D .
TETRAHEDRON LETTERS, 1993, 34 (45) :7317-7318
[5]   Stretched poly(dimethylsiloxane) gels as NMR alignment media for apolar and weakly polar organic solvents: An ideal tool for measuring RDCs at low molecular concentrations [J].
Freudenberger, JC ;
Spiteller, P ;
Bauer, R ;
Kessler, H ;
Luy, B .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (45) :14690-14691
[6]   Residual Dipolar Couplings (RDCs) Analysis of Small Molecules Made Easy: Fast and Tuneable Alignment by Reversible Compression/Relaxation of Reusable PMMA Gels [J].
Gayathri, Chakicherla ;
Tsarevsky, Nicolay V. ;
Gil, Roberto R. .
CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (12) :3622-3626
[7]   Structure refinement of cyclosporin a in chloroform by using RDCs measured in a stretched PDMS-gel [J].
Klages, J ;
Neubauer, C ;
Coles, M ;
Kessler, H ;
Luy, B .
CHEMBIOCHEM, 2005, 6 (09) :1672-1678
[8]   Residual Dipolar Couplings for the Configurational and Conformational Analysis of Organic Molecules [J].
Kummerloewe, G. ;
Luy, B. .
ANNUAL REPORTS ON NMR SPECTROSCOPY, VOL 68, 2009, 68 :193-+
[9]   Residual dipolar couplings as a tool in determining the structure of organic molecules [J].
Kummerloewe, Grit ;
Luy, Burkhard .
TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2009, 28 (04) :483-493
[10]   Order matrix analysis of residual dipolar couplings using singular value decomposition [J].
Losonczi, JA ;
Andrec, M ;
Fischer, MWF ;
Prestegard, JH .
JOURNAL OF MAGNETIC RESONANCE, 1999, 138 (02) :334-342