METHYL (R)-(+)-3-(T-BU-DIMETHYLSILYLOXY&

methyl (R)-(+)-3-(T-bu-dimethylsilyloxy)-5-oxo-1-

METHYL-7-(3-(R)-T-BUTYL DIMETHYLSILOXY-5-OXO-CYCLOPENT-1-ENYL)-HEPTANOATE

METHYL (R)-(+)-3-(TERT-BUTYLDIMETHYLSILYLOXY)-5-OXO-1-CYCLOPENTENE-1-HEPTANOATE

(R)-Methyl 7-(3-((tert-butyldimethylsilyl)-oxy)-5-oxocyclopent-1-en-1-yl)heptanoate