The present invention relates to a process for the preparation of optically active 6-hydroxymethyl-4-tert-butyldimethylsilyloxy)-(4S,6R)-tetrahydro-2H-2-pyranone (&bgr; Hydroxy &dgr; Lacone) and the compound 3-oxo-5-(tert.butyldimethylsilyloxy-(1S-5S)-cyclohexylacetate having the formula
the compound 3-hydroxy-5-(tert,butyldimethylsilyloxy)-(3R,5S)-cyclohexan-1 having the formula
本发明涉及一种制备光学活性6-羟甲基-4-叔丁基二甲基
硅氧基)-(4S,6R)-
四氢-2H-2-吡喃酮(β羟基δ内酯)的方法,以及具有化合物3-氧代-5-(叔丁基二甲基
硅氧基)-(1S-5S)-
环己基乙酸酯的公式,化合物3-羟基-5-(叔丁基二甲基
硅氧基)-(3R,5S)-
环己烷-1的公式。