(R)-(+)-5,9-dimethyldec-8-en-1-yne

(S)-23-benzyloxy-5-methyltricos-8-ynyl tosylate

methyl (S)-(+)-6-bromo-4-methylhexanoate

19(S)-1-benzyloxy-19,23-dimethyl-22,23-oxidotetracosen-15-yne