Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H1⋯O4i | 0.778 (15) | 2.276 (15) | 3.0506 (14) | 173.5 (14) |
Symmetry code: (i) 
.
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