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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O2i	0.88	2.06	2.933 (4)	171
C4—H4⋯Cg1ii	0.95	2.63	3.401 (5)	139

Symmetry codes: (i) ; (ii) . Cg1 is the centroid of the pyrrole ring.