HEXAHYDRO-8-HYDROXY-4A,8-DIMETHYL-3H-3,7,10A-(EPOXYMETHENO)-1H-CYCLOOCTA(C)PYRAN-5(6H)-ONE, (3S-(3.ALPHA.,4A.BETA.,7.ALPHA.,8.BETA.,10A.ALPHA.,11S*))-
hexahydro-8-hydroxy-4a,8-dimethyl-3h-3,7,10a-(epoxymetheno)-1h-cycloocta(c)pyran-5(6h)-one, (3s-(3.alpha.,4a.beta.,7.alpha.,8.beta.,10a.alpha.,11s*))-