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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N9—H9C⋯N7i	0.92	2.24	3.064 (4)	148
N11—H11C⋯N7i	0.92	2.09	2.985 (4)	165
N12—H12C⋯N6ii	0.92	2.10	2.955 (4)	154
N13—H13C⋯N8ii	0.92	2.55	3.138 (4)	122
N9—H9D⋯N2	0.92	2.32	3.117 (4)	145
N14—H14D⋯N1	0.92	2.28	3.130 (5)	154
N10—H10C⋯O3iii	0.92	1.96	2.856 (10)	164
N10—H10D⋯N5iii	0.92	2.49	3.125 (5)	126
N11—H11D⋯N6iii	0.92	2.58	3.163 (4)	122
N13—H13D⋯N5iii	0.92	2.11	3.012 (4)	167
N16—H16C⋯N4iv	0.92	2.52	3.19 (2)	130
N17—H17A⋯N2v	0.97	2.49	3.29 (2)	140
N20—H20C⋯N2iv	0.85	2.44	3.02 (2)	127
O2—H2A⋯N8vi	0.85 (14)	2.41 (14)	3.207 (9)	156 (12)
O2—H2B⋯N2vi	0.85 (15)	2.50 (15)	3.245 (9)	147 (12)

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