(S)-2,2-Di-tert-butyl-4-((S)-3-[1,3]dithian-2-yl-1-methyl-propyl)-5-methylene-[1,3,2]dioxasilinane

(E)-5-((2S,3aR,5R,5'R,6R,6''R,7aR)-2-formyl-6-methyl-2,3,3a,3',3'',4',6,6'',7,7a-decahydrodispiro[furo[3,2-b]pyran-5,2'-furan-5',2''-pyran]-6''-yl)pent-4-en-1-yl pivalate

tert-butyl(((2S,3aR,5R,5'R,6R,6''R,7aR)-6-methyl-6''-vinyl-2,3,3a,3',3'',4',6,6'',7,7a-decahydrodispiro[furo[3,2-b]pyran-5,2'-furan-5',2''-pyran]-2-yl)methoxy)diphenylsilane