





Acta Cryst. (2004). C60, o163-o165 [doi:10.1107/S0108270103029111]
Abstract: The title compounds, C20H20FNO6 and C20H19Cl2NO6, respectively, may exhibit bioactivity. In these compounds, the pyrrolidine ring adopts a conformation intermediate between envelope and half-chair. Only one of the two ethoxycarbonyl side chains is nearly planar. Centrosymmetric pairs are formed, and the crystal structure is stabilized by weak C-H
O hydrogen bonds and van der Waals interactions.
Formula: C20H20FNO6 and C20H19Cl2NO6
Online 10 February 2004
![]() ![]() Structure factor file (CIF format) (204.2 kbytes) | |
![]() ![]() Structure factor file (CIF format) (218.0 kbytes) | |
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