Synthesis of N-benzoylphenylisoserinates of lactarorufin B (a sesquiterpene of Lactarius origin) and its derivatives

Lactarorufin B, which is a Lactarius sesquiterpene possessing primary, seco ndary and tertiary hydroxyl groups on its lactarane skeleton, was selective ly transformed into (2 'R,3 'S)-N-benzoylphenylisoserinates, using protecti ve group methodology described below.