(3R,4R)-(+)-2E-2-[(2R,3R)-2,3-epoxy-7-(4-methoxyphenylmethoxy)hept-1-enyl]-4-[(1,1-dimethylethyl)diphenylsilyloxy]-3-(2Z-octenyl)-cyclopentanone

(4R)-(+)-4-[(1,1-dimethylethyl)diphenylsilyloxy]cyclopent-2-en-1-one

(1S,5R)-2-bromo-3-[(1,1-dimethylethyl)dimethylsilyloxy]-5-[(1,1-dimethylethyl)diphenylsilyloxy]cyclopent-2-ene-acetaldehyde

(3S,4R)-(+)-2-bromo-3-ethenyl-1-[(1,1-dimethylethyl)dimethylsilyloxy]-4-[(1,1-dimethylethyl)diphenylsilyloxy]cyclopent-1-ene