Table 1. Hydrogen-bond geometry (Å, °) for I .

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O10—H10A⋯O9i	0.85 (2)	1.85 (2)	2.652 (2)	157 (3)
O10—H10B⋯O6ii	0.83 (2)	1.98 (2)	2.786 (2)	166 (3)

Symmetry codes: (i) ; (ii) .