two dimensional NMR experiments. The complete 13C and 1H assignments of the peracetyl spirostanosides and the furostanololigoside were derived. The interconversions between the methoxyl and hydroxyl group at C-22 of the furostanol glycoside was investigated and the genuine furostanololigoside of A. africanus appears to be the hydroxyl type based on the comparative study of the methanol, pyridine and