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

Cg1 is the centroid of the C10–C15 benzene ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H1N2⋯O1i	0.886 (15)	1.999 (15)	2.8622 (12)	164.4 (14)
O2—H1O2⋯N1ii	0.87 (2)	1.96 (2)	2.7750 (13)	156.9 (19)
C2—H2A⋯O3iii	0.93	2.55	3.1651 (14)	124
C4—H4A⋯N3iv	0.93	2.60	3.4747 (14)	156
C7—H7A⋯O1i	0.93	2.52	3.2405 (14)	135
C16—H16B⋯Cg1v	0.96	2.65	3.4556 (12)	142

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