Regioselective monobenzylation of the chemoenzymatically prepared chiral de
calin-type diol ((8aS)-6) via the benzylidene acetal ((8aS)-11) afforded th
e primary alcohol((8aS)-7), from which total synthesis of(+)-galanolactone
(1) was achieved and formal syntheses of (+)-(E)-8 beta(17), 12-labddiene-1
5, 16-dial ((+)-3) and (+)-coronarin E (4) were carried out.