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

Cg1 is the centroid of the C10–C15 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1	0.983 (19)	1.64 (2)	2.6255 (15)	176.2 (17)
N2—H6⋯O2i	0.913 (18)	1.938 (18)	2.8230 (16)	162.6 (16)
N2—H9⋯O2	0.949 (19)	1.844 (19)	2.7903 (15)	175.2 (16)
C11—H11⋯O1ii	0.95	2.53	3.479 (2)	178
C12—H12⋯O1iii	0.95	2.47	3.3212 (18)	149
C2—H2⋯Cg1i	0.95	2.62	3.5464 (15)	166

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