(4R,7S,E)-7-(((tert-butyl)diphenylsilyl)oxy)-5-methylocta-1,5-dien-4-ol

(2S,6S,E)-methyl 2-((benzyloxycarbonyl)(tert-butoxycarbonyl)amino)-6-(carbamoyloxy)-4-methylhept-4-enoate

(2S,4R,E)-methyl 2-((benzyloxycarbonyl)(tert-butoxycarbonyl)amino)-4-(tert-butoxycarbonylamino)-4-methylhept-5-enoate

(2S,6S,E)-methyl 2-(benzyloxycarbonylamino)-6-(tert-butyl-diphenylsilyloxy)-4-methylhept-4-enoate

(2S,6S,E)-methyl 2-((benzyloxycarbonyl)(tert-butoxycarbonyl)amino)-6-(tert-butyldiphenylsilyloxy)-4-methylhept-4-enoate