HCID 86750895, compound → HCID 15296124, compound

Participants

Reaction Steps

By following the procedure of Example ZA-6A and substituting methyl (E)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxoisobenzofuran-5-yl)-2,4-dimethyl-4-hexenoate with ethyl (E)-3-[2-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxoisobenzofuran-5-yl)ethylidene]cyclopentane -1-carboxylate (prepared e.g, as described with reference to Reaction Scheme ZD-A, Steps 1 through 4) there is obtained (E)-3-[2-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxoisobenzofuran-5-yl)ethylidene]cyclopentane -1-carboxylic acid, m.p. 128°-130° C. (hexane-dichloromethane).

Provenance & Evidence