(+/-)-(E)-ethyl 2-acetamido-7-hydroxyhept-5-enoate

(+/-)-diethyl 1-acetyl-5-vinylpyrrolidine-2,2-dicarboxylate

(E)-diethyl 2-acetamido-2-(5-hydroxypent-3-enyl)malonate

(E)-5-bromo-1-[(tert-butyldiphenylsilyl)oxy]pent-2-ene

(+/-)-(E)-ethyl 2-acetamido-7-[(tert-butyldiphenylsilyl)oxy]hept-5-enoate