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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H1N2⋯O1i	0.81 (2)	2.04 (2)	2.8318 (14)	166.6 (18)
C9—H9A⋯O3ii	0.99	2.31	3.1818 (16)	147
C9—H9B⋯N4iii	0.99	2.40	3.3462 (16)	160
C10—H10A⋯O2ii	0.95	2.56	3.4488 (16)	155

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