Total synthesis of prostaglandin D2 methyl ester
Abstract
The readily available norbornanone (2) gave a mixture of the lactones (3) and (4) on peracid oxidation, the minor component (4) being removed by treatment with aqueous alkali; conversion of (3) into (6) was performed so as to minimise silyl group scrambling, and the alcohol (6) was transformed into (±) prostaglandin D2 methyl ester (9) by oxidation followed by deprotection using HF in acetonitrile.