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Figure 1
The asymmetric units of (a) (I)[link], (b) (II)[link] and (c) (III)[link], showing the atom-numbering schemes. Displacement ellipsoids are drawn at the 30% probability level. Dashed lines indicate hydrogen bonds. The H atom between atoms N2 and O1 in (I)[link] and (II)[link], and the H atom between atoms O3 and O1 in (III)[link], are disordered over two sites, with major site occupancies of 0.56, 0.51 and 0.55 for (I)[link], (II)[link] and (III)[link], respectively. The minor component of disordered atom C191 of the DMF solvent mol­ecule in (I)[link] has been omitted for clarity. H atoms attached to methyl atom C17 of (II)[link] are disordered over two orientations rotated by 60° relative to each other with half occupancy.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 69| Part 10| September 2013| Pages 1164-1169
doi:10.1107/S0108270113023573
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