上游原料
tert-Butyl 3-hydroxypent-4-enoatetert-butyl (R)-3-((tert-butyldimethylsilyl)oxy)pent-4-enoatetert-butyl (S)-3-((tert-butyldimethylsilyl)oxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentanoate(1S,2S,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]heptane-2,3-diol; (+)-Pinanedioltert-butyl (S)-3-((tert-butyldimethylsilyl)oxy)-5-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)pentanoatetert-butyl (3S,6S)-3-((tert-butyldimethylsilyl)oxy)-6-chloro-6-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)hexanoatetert-butyl (3S,6R)-6-(bis(trimethylsilyl)amino)-3-((tert-butyldimethylsilyl)oxy)-6-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)hexanoate2-(2-thienyl)acetyl chloride; 2-Thiopheneacetyl chloride2-(2-thienyl)acetic acidtert-butyl (3S,6R)-3-((tert-butyldimethylsilyl)oxy)-6-(2-(thiophen-2-yl)acetamido)-6-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)hexanoate
