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Título

Conformational analysis of a cyclopropane analogue of phenylalanine with two geminal phenyl substituents

AutorCasanovas, Jordi; Jiménez, Ana I. ; Cativiela, Carlos ; Pérez, Juan J.; Alemán, Carlos
Fecha de publicación22-feb-2006
EditorAmerican Chemical Society
CitaciónThe Journal of Physical Chemistry B 110(11): 5762–5766 (2006)
ResumenQuantum mechanical methods have been used to investigate the intrinsic conformational preferences of 1-amino-2,2-diphenylcyclopropanecarboxylic acid (c3Dip), a cyclopropane analogue of phenylalanine bearing two phenyl substituents on the same β-carbon. Geometries, energies, and frequencies were calculated on the N-acetyl-N‘-methylamide derivative at the HF and B3LYP levels using the 6-31G(d), 6-311G(d), and 6-31+G(d,p) basis sets. Four minimum energy conformations were characterized: axial C7, equatorial C7, right-handed helix, and polyproline II. Analysis of the whole results, which are fully consistent with available experimental data, indicates that c3Dip tends to promote γ-turn conformations.
Descripción5 pages, 3 figures, 4 tables.
Versión del editorhttp://dx.doi.org/10.1021/jp0542569
URIhttp://hdl.handle.net/10261/19451
DOI10.1021/jp0542569
ISSN1520-5126
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