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(3S,4aR,5S,6R,6aR,10R,10aS,10bR)-5,6-Diacetoxy-4a,6a,7,10b-tetramethyl-4'-oxo-1,2,4',4a,5,5',6,6a,9,10,10a,10b-dodecahydro-3'H-spiro[benzo[f]chromene-3,2'-furan]-10-yl nicotinate
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3-Pyridinecarboxylic acid, (3S,4a'R,5'S,6'R,6a'R,10'R,10a'S,10b'R)-5',6'-bis(acetyloxy)-1',2',4,4'a,5,5',6',6'a,9',10',10'a,10'b-dodecahydro-4'a,6'a,7',10'b-tetramethyl-5-oxospiro[furan-3(2H),3'-[3H]naphtho[2,1-b]pyran]-10'-yl ester
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(3S,4aR,5S,6R,6aR,10R,10aS,10bR)-5,6-Diacetoxy-4a,6a,7,10b-tetramethyl-5'-oxo-1,2,4',4a,5,5',6,6a,9,10,10a,10b-dodecahydrospiro[benzo[f]chromene-3,3'-furan]-10-yl nicotinate
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3-Pyridinecarboxylic acid, (2S,4a'R,5'S,6'R,6a'R,10'R,10a'S,10b'R)-5',6'-bis(acetyloxy)-1',2',4,4'a,5,5',6',6'a,9',10',10'a,10'b-dodecahydro-4'a,6'a,7',10'b-tetramethyl-4-oxospiro[furan-2(3H),3'-[3H]naphtho[2,1-b]pyran]-10'-yl ester
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