K. Peters et al., Crystal structure of (4R*,5R*)-methyl 3,6-hexanooxepino[4,5-d]-2-pyrazoline-5-carhoxylate, C6H12[C7H5N2O]COOCH3, Z KRIST-NEW, 214(1), 1999, pp. 95-96
C15H20N2O3, monoclinic, C12(1)/c1 (No. 15), a = 25.18(1) Angstrom, b = 8.14
1(5) Angstrom, c = 13.994(7) Angstrom, beta = 95.16(4)degrees, V = 2856.3 A
ngstrom(3), Z = 8, R-gt(F) = 0.060, R-w(F) = 0.055, T = 293 K.