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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O5i	0.88	1.99	2.861 (3)	172
N1—H1B⋯O2Wii	0.88	2.00	2.816 (3)	153
N2—H2A⋯O1iii	0.88	2.03	2.888 (3)	166
N2—H2B⋯O1Wi	0.88	2.08	2.838 (3)	144
O1W—H1AA⋯O5iv	0.84	1.94	2.769 (3)	170
O2W—H2AB⋯O1v	0.84	1.94	2.767 (3)	168
O1W—H1AB⋯O7	0.84	2.17	2.956 (3)	156
O1W—H1AB⋯O8	0.84	2.39	2.994 (3)	130
O2W—H2AA⋯O3	0.84	2.00	2.833 (3)	171
C7—H7⋯O2Wii	0.95	2.60	3.493 (3)	158
C15—H15B⋯O2Wvi	0.99	2.56	3.309 (4)	133

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