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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1i	0.86	1.98	2.815 (2)	165
C1—H1B⋯O2ii	0.93	2.47	3.396 (3)	179
C7—H7A⋯N2iii	0.93	2.50	3.422 (3)	171

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