[Dimethyl 3-benzyl-2-(4-methyl-2,5-dioxoimidazolidin-1-yl)butanedioate].
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.
Rolland
M
M
Laboratoire 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
Jenhi
A
A
Lavergne
J P
JP
Martinez
J
J
Hasnaoui
A
A