Trifluoro-methanesulfonic acid (2S,3R,4aS,5aR,10aS,11aR)-3-benzyloxy-2-(2-benzyloxy-ethyl)-2,4a,5a-trimethyl-2,3,4,4a,5a,6,7,10a,11,11a-decahydro-1,5,10-trioxa-cyclohepta[b]naphthalen-9-yl ester

[(2R,3S,4aR,6S,7R,8aS)-7-Benzyloxy-6-(2-benzyloxy-ethyl)-3-(tert-butyl-dimethyl-silanyloxy)-2,6,8a-trimethyl-octahydro-pyrano[3,2-b]pyran-2-yl]-methanol

(2S,3R,4aS,6R,7S,8aR)-3-Benzyloxy-2-(2-benzyloxy-ethyl)-7-(tert-butyl-dimethyl-silanyloxy)-6-[(Z)-4-(tert-butyl-dimethyl-silanyloxy)-but-1-enyl]-2,4a,6-trimethyl-octahydro-pyrano[3,2-b]pyran

(S,E)-3-((2S,3R,4aS,5aR,7aS,12R,12aR,13aS,14aR)-3-(benzyloxy)-2-(2-(benzyloxy)ethyl)-2,4a,5a,12-tetramethyltetradecahydrooxepino[3,2-b]pyrano[2',3':5,6]pyrano[2,3-f]oxepin-9(2H)-ylidene)-2-((tert-butyldimethylsilyl)oxy)-2-methylpropyl pivalate