Ito S, Ziffer H, Silverton J V
Laboratory of Chemical Physics, NIDDK, Bethesda, MD 20892.
Acta Crystallogr C. 1988 Jan 15;44 ( Pt 1):145-7. doi: 10.1107/s0108270187009181.
C21H31BrO4, Mr = 427.38, monoclinic, P2(1), a = 8.050 (1), b = 12.703 (3), c = 10.658 (1) A, beta = 102.56 (2) degrees, V = 1063.80 A3, Z = 2, Dx = 1.334 g cm-3, lambda(Cu K alpha) = 1.5418 A, mu = 28.09 cm-1, experimental temperature 296 K. F(000) = 448, R = 0.045 for 2015 unique reflections with I greater than or equal to sigma(I). The conformation of the 11-membered ring in this compound and its absolute configuration (1R) have been determined.
C21H31BrO4，Mr = 427.38，单斜晶系，P2(1)，a = 8.050(1)，b = 12.703(3)，c = 10.658(1)埃，β = 102.56(2)°，V = 1063.80埃³，Z = 2，Dx = 1.334克/厘米³，λ(Cu Kα) = 1.5418埃，μ = 28.09厘米⁻¹，实验温度296K。F(000) = 448，对于2015个I大于或等于σ(I)的独立反射，R = 0.045。已确定该化合物中11元环的构象及其绝对构型(1R)。
