(2S,2'R,5'S)-5'-((S)-2-((3aR,6S,7aS)-8,8-dimethyl-2,2-dioxidohexahydro-1H-3a,6-methanobenzo[c]isothiazol-1-yl)-1-hydroxy-2-oxoethyl)-5'-ethyl-2-methylhexahydro-[2,2'-bifuran]-5(2H)-one

(R)-4-((2S,5S,7S,9S,10S,12R,15R)-2-((2R,5R,6S)-5-ethyl-6-methyl-5-((triethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)-15-hydroxy-2,10,12-trimethyl-1,6,8-trioxadispiro[4.1.5⁷.3⁵]pentadec-13-en-9-yl)hexan-3-one

(2S,5R,7S,9S,10S,12R,15R)-2-((2R,5R,6S)-5-ethyl-6-methyl-5-((triethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)-9-((S)-1-hydroxybutan-2-yl)-2,10,12-trimethyl-1,6,8-trioxadispiro[4.1.57.35]pentadec-13-en-15-yl acetate

(2S,5R,7S,9S,10S,12R,15R)-2-((2R,5R,6S)-5-ethyl-6-methyl-5-((triethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)-2,10,12-trimethyl-9-((S)-1-((triethylsilyl)oxy)butan-2-yl)-1,6,8-trioxadispiro[4.1.5⁷.3⁵]pentadec-13-en-15-ol

(2S,5R,7S,9S,10S,12R)-2-((2R,5R,6S)-5-Ethyl-6-methyl-5-triethylsilanyloxy-tetrahydro-pyran-2-yl)-2,10,12-trimethyl-9-((S)-1-triethylsilanyloxymethyl-propyl)-1,6,8-trioxa-dispiro[4.1.5.3]pentadec-13-en-15-one