(2E,4E,6R,7S)-ethyl 7-(tert-butyldimethylsilyloxy)-7-((2R,3S)-3-((R)-1-hydroxybut-3-enyl)oxiran-2-yl)-2,4,6-trimethylhepta-2,4-dienoate

(6R,7R,2E,4E,8E)-7-(tert-butyldimethylsilyloxy)-10-hydroxy-2,4,6-trimethyldeca-2,4,8-trienoic acid ethyl ester

(2S,3R,4E)-3-(tert-butyldimethylsilyloxy)-N-methoxy-6-(4-methoxybenzyloxy)-2-N-dimethylhex-4-enamide

(4R,5R,2E,6E)-5-(tert-butyldimethylsilyloxy)-8-(4-methoxybenzyloxy)-2,4-dimethylocta-2,6-dienoic acid ethyl ester

(4S)-4-benzyl-3-[(2S,3R,4E)-3-hydroxy-6-(4-methoxybenzyloxy)-2-methylhex-4-enoyl]-1,3-oxazolidin-2-one