Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C7—H7B⋯N3i | 0.97 | 2.62 | 3.538 (4) | 157 |
| C8—H8A⋯O1ii | 0.93 | 2.35 | 3.243 (3) | 162 |
Symmetry codes: (i) 
; (ii) 
.
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