Acta Cryst. (2009). C65, o303-o310 [ doi:10.1107/S0108270109018964 ]
Formula: C20H23N3, C21H22F3N3, C20H22BrN3, C21H25N3, C20H22ClN3, C20H22N4O2 and C23H29N3O3
Online 27 May 2009
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