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Conformational switching caused by biphenyl substitution at the Calpha position: ethyl 2-benzyl-2-(formylamino)-3-phenylpropionate and ethyl 3-(1,1'-biphenyl-4-yl)-2-(formylamino)-2-(4-phenylbenzyl)propionate. | LitMetric
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Conformational switching caused by biphenyl substitution at the Calpha position: ethyl 2-benzyl-2-(formylamino)-3-phenylpropionate and ethyl 3-(1,1'-biphenyl-4-yl)-2-(formylamino)-2-(4-phenylbenzyl)propionate.

Lakshminarasimhan Damodharan Vasantha Pattabhi Manoranjan Behera Sambasivarao Kotha

Acta Crystallogr C

Department of Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.

Published: July 2004

The title compounds, C19H21NO3 and C31H29NO3, are derivatives of alpha-aminoisobutyric acid, with benzyl and dibenzyl substitution. The pseudo-peptide formed by the N-formyl and ethyl ester substitution at the Calpha position switches from a trans-trans to a trans-cis configuration as a result of biphenyl substitution. The packing of the compounds is stabilized by N-H...O and C-H...O hydrogen bonds.

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http://dx.doi.org/10.1107/S0108270104013150DOI Listing

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