Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C1—H1⋯O6 | 0.95 | 2.30 | 3.231 (5) | 165 |
| C14—H14⋯O3i | 0.95 | 2.28 | 3.231 (5) | 177 |
| C15—H15⋯O2 | 0.95 | 2.28 | 3.213 (5) | 169 |
| C28—H28⋯O7ii | 0.95 | 2.41 | 3.291 (5) | 155 |
Symmetry codes: (i) 
; (ii) 
.
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