methyl (S)-7,8-bis((triethylsilyl)oxy)oct-4-ynoate

methyl (S,4Z,8E,12E,14E)-15-((4R,5S)-2,2-dimethyl-5-((Z)-pent-2-en-1-yl)-1,3-dioxolan-4-yl)-7-hydroxypentadeca-4,8,12,14-tetraen-10-ynoate

methyl (S,4Z,8E,12E,14E)-15-((4R,5S)-2,2-dimethyl-5-((Z)-pent-2-en-1-yl)-1,3-dioxolan-4-yl)-7-((triethylsilyl)oxy)pentadeca-4,8,12,14-tetraen-10-ynoate