(7S,8S,8aS)-8-hydroxy-7-methyl-6-oxo-3((1E)-prop-1-en-1-yl)-6,7,8,8a-tetrahydro-1H-isochromen-7-yl 2,4-dihydroxy-6-methylbenzoate
(7s,8s,8as)-8-hydroxy-7-methyl-6-oxo-3((1e)-prop-1-en-1-yl)-6,7,8,8a-tetrahydro-1h-isochromen-7-yl 2,4-dihydroxy-6-methylbenzoate