作者: Anil Kumar Tripathi , Clemens Bruhn , Susanne Flock , Herbert Frauenrath
DOI: 10.1107/S0108270105035134
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摘要: The crystal structures of the title compounds, C12H18N2O4, have been determined in order to establish relative configurations. In both structures, isopropyl substituent strongly prefers quasi-equatorial position. Therefore, exo isomer adopts a dioxepanoaziridine pattern chair–chair (CC) conformation and endo boat–chair (BC) conformation.