Table 1. Hydrogen-bond geometry (Å, °) for 1 .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C8—H8⋯O1i | 0.93 | 2.65 | 3.411 (5) | 140 |
| C15—H15B⋯O3ii | 0.97 | 2.66 | 3.437 (5) | 138 |
Symmetry codes: (i) 
; (ii) 
.
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