19-(5-Hydroxy-3,4-dimethoxy-tetrahydro-pyran-2-yloxy)-10,20-dimethyl-5,15-bis-(2-methyl-cyclopropyl)-9-(3,4,5-trimethoxy-tetrahydro-pyran-2-yloxy)-4,14,21,22-tetraoxa-tricyclo[15.3.1.1^(7,11)]docosane-3,13-dione 1H-carbazole-8-carboxylic acid, 1-formyl-4,9-dihydro-1,9-dihydroxy-4-oxo-, methyl ester Clavosolide C InChI=1/C43H70O16/c1-20-10-26(20)33-14-24-12-29(58-42-40(50-8)38(48-6)28(44)18-52-42)22(3)31(54-24)16-36(45)57-34(27-11-21(27)2)15-25-13-30(23(4)32(55-25)17-37(46)56-33)59-43-41(51-9)39(49-7)35(47-5)19-53-43/h20-35,38-44H,10-19H2,1-9H3/t20-,21-,22+,23+, rel-(1R,5R,7R,9R,10R,11R,15R,17R,19R,20R)-9-[(5-hydroxy-3,4-dimethoxytetrahydro-2H-pyran-2-yl)oxy]-10,20-dimethyl-5,15-bis[(1R,2R)-2-methylcyclopropyl]-19-[(3,4,5-trimethoxytetrahydro-2H-pyran-2-yl)ox