Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 7 (July 2004)

na1665 scheme

Acta Cryst. (2004). C60, o527-o530 [doi:10.1107/S0108270104013150]

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

L. Damodharan, V. Pattabhi, M. Behera and S. Kotha

Abstract: 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 C 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-HO and C-HO hydrogen bonds.

Formula: C₁₉H₂₁NO₃ and C₃₁H₂₉NO₃

Online 30 July 2004


	Structure factor file (CIF format) (186.4 kbytes) Contains datablock I

	Structure factor file (CIF format) (288.7 kbytes) Contains datablock II

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