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

Cg1 is the centroid of the C3–C8 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1o⋯N1i	0.85 (2)	1.84 (2)	2.689 (2)	176 (2)
C8—H8⋯O2ii	0.95	2.47	3.398 (2)	166
C10—H10⋯O2iii	0.95	2.57	3.277 (2)	132
C10—H10⋯Cg1iii	0.95	2.89	3.627 (2)	135

Symmetry codes: (i) ; (ii) ; (iii) .