Toluene-4-sulfonic acid (S)-2-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-propyl ester

(1R,3S)-1-{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-3-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-butan-1-ol

(2S,3R,6S)-2-((R)-2-Bromo-1-methyl-ethyl)-3-methyl-1,7-dioxa-spiro[5.5]undecane