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[Dimethyl 3-benzyl-2-(4-methyl-2,5-dioxoimidazolidin-1-yl)butanedioate]
M Rolland1, A Jenhi, J P Lavergne
1Laboratoire des Aminoacides, Peptides et Protéines, Université Montpellier I et II, Faculté de Pharmacie, UMR CNRS 5810, 15 Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France. rolland@colombes.pharma.univ-montp1.fr
Acta Crystallographica. Section C, Crystal Structure Communications
|February 15, 2001
Abstract:
There are two symmetry-independent formula units of the title compound, dimethyl 3-benzyl-2-(4-methyl-2,5-dioxoimidazolidin-1-yl)butanedioate, C17)H20N2O6, per cell. The two symmetry-independent molecules differ in their configuration and are diastereomers. This structural study confirms a new side reaction during the synthesis of seven-membered cyclopeptides. The stereochemistry of both diastereomers has been established.