Abstract C 15 H 15 N 3 O 5 , monoclinic, P 2 1 /n (no. 14), a = 9.604(9) Å, b = 16.598(13) Å, c = 9.874(8) Å, β = 107.73(3)°, V = 1499(2) Å 3 , Z = 4, R gt ( F ) = 0.0394, wR ref ( F 2 ) = 0.1080, T = 298 K.
Hui-Lian et al. (Wed,) studied this question.