Abstract: | A new solanocapsine-type alkaloid named aculeamine has been isolated from roots of Solanum aculeatum and its structure has been established by X-ray analysis as 22,26-epimino-23β-methoxy-16α,23-epoxy-5α,25αH,25βH-chloestane-3β-ol. The compound crystallizes in the hexagonal space group P61 with the lattice parameters a = b = 16.706, c = 17.056 Å, α = β = 90°, γ = 120°. The final residual value was R = 0.079. |