(1″S,2S,2′S,3″S,3aS,3a′S,5R,6″S,7S,7′S,7aS,7a′S,14″R,20″S,22″R,26″R,28″S,29″S,30″R,34″R,37″S,40″S,43″R,44″S)-7,7′,14″,29″-Tetramethyl-8″,15″-bis(methylene)-2-[(1S,3R)-1,3,4-trihydro xybutyl]decahydro-3′H,32″H-dispiro[furo[3,2-b]pyran-5,5′-furo[3,2-b]pyran-2′,24″-[2,19,23,27,31,38,42,45,47,48,49]undecaoxaundecacyclo[32.9.2.1~3,40~.1~3,41~.1~6,9~.1~12,16~.0~18,30~.0~20,28~.0~22,2 6~.0~37,44~.0~39,43~]nonatetracontan]-32″-o

(1″S,2S,2′S,3″S,3aS,3a′S,5R,6″S,7S,7′S,7aS,7a′S,14″R,20″S,22″R,26″R,28″S,29″S,30″R,34″R,37″S,40″S,43″R,44″S)-7,7′,14″,29″-Tetramethyl-8″,15″-bis(methylene)-2-[(1S,3R)-1,3,4-trihydro xybutyl]decahydro-3′H,32″H-dispiro[furo[3,2-b]pyran-5,5′-furo[3,2-b]pyran-2′,24″-[2,19,23,27,31,38,42,45,47,48,49]undecaoxaundecacyclo[32.9.2.1~3,40~.1~3,41~.1~6,9~.1~12,16~.0~18,30~.0~20,28~.0~22,2 6~.0~37,44~.0~39,43~]nonatetracontan]-32″-o

(1″S,2S,2′S,3″S,3aS,3a′S,5R,6″S,7S,7′S,7aS,7a′S,14″R,20″S,22″R,26″R,28″S,29″S,30″R,34″R,37″S,40″S,43″R,44″S)-7,7′,14″,29″-Tetramethyl-8″,15″-bis(methylene)-2-[(1S,3R)-1,3,4-trihydro xybutyl]decahydro-3′H,32″H-dispiro[furo[3,2-b]pyran-5,5′-furo[3,2-b]pyran-2′,24″-[2,19,23,27,31,38,42,45,47,48,49]undecaoxaundecacyclo[32.9.2.1~3,40~.1~3,41~.1~6,9~.1~12,16~.0~18,30~.0~20,28~.0~22,2 6~.0~37,44~.0~39,43~]nonatetracontan]-32″-one

(1″S,2R,2′S,3″S,3′aS,4S,4aS,6S,6″S,7′S,7aS,7′aS,14″R,20″S,22″R,26″R,28″S,29″S,30″R,34″R,37″S,40″S,41″R,43″R,44″S)-4,7′,14″,29″-tetramethyl-8″,15″-dimethylidene-6-[(1S,3R)-1,3,4-trihydroxybutyl]-decahydro-3′H-dispiro[bis(furo[3,2-b]pyran)-2,5′:2′,24″-[2,19,23,27,31,38,42,45,47,48,49]undecaoxundecacyclo[32.9.2.13,40.13,41.16,9.112,16.018,30.020,28.022,26.037,44.039,43]nonatetracontane]-32″-one