A. Lyakhov, D. O. Ivashkevich, A. A. Govorova
Mar 1, 2000
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Journal
Crystallography Reports
Abstract
The crystal and molecular structures of 8,9-dimethoxy-5′,5′-dimethyl-1,2,3,5,6,10b-hexahydropyr-rolo[2,1-a]isoquinoline-1-spiro-2′-cyclohexane-3,1′,3′-trione are studied by X-ray diffraction. The unit cell parameters are a = 9.478(2) Å, b = 9.844(3) Å, c = 11.663(3) Å, α = 111.17(2)°, β = 99.56(2)°, γ = 105.82(2)°, Z = 2, and space group P1¯. The structure is solved by the direct method and refined to R = 0.0411 [I > 4σ(I)]. Conformational and geometric characteristics of the compound studied and the molecular packing in the crystal are discussed.