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

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

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