C19H25N3O7,. triclinic, P (1) over bar (no. 2), a = 9.304(1) angstrom b = 10.844(1) angstrom, c = 11.033(1) angstrom, alpha = 109.574(3)degrees, beta = 102.575(3)degrees, gamma = 102.419(3)degrees, V = 972.2 angstrom(3), Z = 2, R-gt(F) = 0.051, wR(ref)(F-2) = 0. 101, T = 120 K.
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