Crystal structure of (±)-(4RS, 5RS, 7SR)-4-[(1RS, 2RS, 3RS, 6RS)-3-benzo­yloxy-2-(2-hy­droxy­ethyl)-6-meth­oxy­meth­oxy-2-methyl­cyclo­hex­yl]-8, 10, 10-tri­methyl-2-oxo-1, 3-dioxa­spiro­[4.5]dec-8-en-7-yl benzoate benzene monosolvate. (January 2015)