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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H4⋯N3i	0.84	1.83	2.6672 (13)	175
C3—H3A⋯O5ii	0.95	2.26	3.1447 (16)	155
C6—H6A⋯O3iii	0.95	2.31	3.2283 (16)	162
C20—H20B⋯O6iv	0.98	2.35	3.2559 (16)	154

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