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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H6⋯Cl2	0.91	2.76	3.257 (6)	116
N1—H4⋯Cl1i	0.91	2.35	3.248 (6)	170
N1—H5⋯Cl1ii	0.91	2.49	3.381 (7)	167
N1—H6⋯Cl3iii	0.91	2.54	3.241 (7)	134
C3—H1⋯O1iv	0.95	2.52	3.424 (10)	160

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