ER-807901

2,2-dimethyl-propionic acid 6-(tert-butyl-dimethyl-silanyloxy)-5-(4-methoxy-benzyloxy)-8-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-octa-2,7-dienyl ester

2,2-dimethyl-propionic acid 6-hydroxy-5-(4-methoxy-benzyloxy)-8-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-octa-2,7-dienyl ester

6,7-dihydroxy-5-(4-methoxy-benzyloxy)-hept-2-enoic acid methyl ester

6-hydroxy-5-(4-methoxy-benzyloxy)-8-(4-methyl-3,6-dihydro-2H-pyran-2-yl)-octa-2,7-dienoic acid methyl ester