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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N1⋯O2i	0.880 (19)	1.956 (19)	2.7816 (14)	155.7 (19)
C1—H1A⋯O1	0.95	2.38	3.0185 (16)	124
C1—H1A⋯O1ii	0.95	2.51	3.2342 (16)	133
C7—H7A⋯O1iii	0.99	2.57	3.4960 (16)	155
C19—H19B⋯O2iv	0.98	2.55	3.4470 (17)	152

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