Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1N⋯O2i | 0.816 (17) | 2.345 (17) | 3.1428 (17) | 166 (15) |
| C10—H10A⋯O3i | 0.98 | 2.56 | 3.371 (2) | 140 |
| C21—H21⋯O4ii | 0.95 | 2.58 | 3.279 (2) | 131 |
Symmetry codes: (i) 
; (ii) 
.
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