1beta,2beta,5alpha,8beta,11-Pentaacetoxy-4alpha-hydroxy-3alpha-(2'-methylbutanoyl)-15-nicotinoyl-7-oxo-dihydroagarofuran InChI=1/C36H45NO17/c1-10-17(2)31(44)53-29-26(49-19(4)39)30(52-22(7)42)35(16-47-18(3)38)28(51-21(6)41)25(43)24-27(50-20(5)40)36(35,34(29,9)46)54-33(24,8)15-48-32(45)23-12-11-13-37-14-23/h11-14,17,24,26-30,46H,10,15-16H2,1-9H3/t17?,24-,26+,27-,28-,29+,30+ Nicotinic acid 4,5,7,12-tetraacetoxy-6-acetoxymethyl-2-hydroxy-2,10-dimethyl-3-(2-methyl-butyryloxy)-8-oxo-11-oxa-tricyclo[7.2.1.0^(1,6)]dodec-10-ylmethyl ester {(2R,3R,5S,5aS,6R,7R,8S,9S,9aS,10R)-5,6,7,10-tetrakis(acetyloxy)-5a-[(acetyloxy)methyl]-9-hydroxy-2,9-dimethyl-8-[(2-methylbutanoyl)oxy]-4-oxooctahydro-2H-3,9a-methano-1-benzoxepin-2-yl}methyl rel-nic