Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O1—H1⋯N1i | 0.84 | 1.85 | 2.685 (5) | 173 |
| C5—H5⋯O2ii | 0.95 | 2.39 | 3.258 (7) | 152 |
| C6—H6⋯O2iii | 0.95 | 2.47 | 3.171 (6) | 131 |
Symmetry codes: (i) 
; (ii) 
; (iii) 
.
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