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

Cg is the centroid of the C9–C14 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O4	0.86	1.90	2.7441 (16)	169
N2—H2A⋯O3i	0.86	2.20	3.0233 (19)	161
N2—H2B⋯O3	0.86	2.12	2.9398 (18)	159
C8—H8B⋯O5ii	0.96	2.37	3.248 (2)	152
C7—H7A⋯Cgiii	0.96	2.96	3.7815 (18)	145

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