Table 4. Hydrogen-bond geometry (Å, °) for 2.
Cg is the centroid of the C17–C22 ring.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C2—H2B⋯O2ii | 0.98 | 2.61 | 3.527 (4) | 155 |
| C15—H15A⋯Cgiii | 0.98 | 2.62 | 3.340 (3) | 125 |
Symmetry codes: (ii) 
; (iii) 
.
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