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Figure 1
The asymmetric unit of (a) (I)[link], (b) (II)[link] and (c) (III)[link]. For (I)[link] and (II)[link], the N—H⋯O and for (II)[link] the N—H⋯N intra­molecular hydrogen bonds are shown by thin lines. Displacement ellipsoids are drawn at the 30% probability level. The disordered atoms (O31C, O32C, O71W and K71) in (III)[link] have been omitted for clarity.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 67| Part 7| June 2011| Pages m266-m274
doi:10.1107/S010827011102244X
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