(1R,2R,3aS,4S,5S,7S,9R,10R,11S,13S,13aS)-1,3a,9,11,13-pentakis(acetyloxy)-4-hydroxy-2,5,8,8-tetramethyl-12-methylene-6-oxotetradecahydro-1H-4,7-epoxycyclopenta[12]annulen-10-yl rel-benzoate 4,7-epoxy-6H-cyclopentacyclododecen-6-one, 1,3a,9,11,13-pentakis(acetyloxy)-10-(benzoyloxy)tetradecahydro-4-hydroxy-2,5,8,8-tetramethyl-12-methylene-, (1S,2S,3aR,4R,5R,7R,9S,10S,11R,13aR)- Benzoic acid 2,5,7,9,11-pentaacetoxy-1-hydroxy-4,12,12,15-tetramethyl-8-methylene-14-oxo-16-oxa-tricyclo[11.2.1.0^(2,6)]hexadec-10-yl ester InChI=1/C37H46O15/c1-17-16-36(51-24(8)42)26(28(17)46-20(4)38)29(47-21(5)39)18(2)30(48-22(6)40)31(50-34(44)25-14-12-11-13-15-25)33(49-23(7)41)35(9,10)32-27(43)19(3)37(36,45)52-32/h11-15,17,19,26,28-33,45H,2,16H2,1,3-10H3/t17-,19+,26+,28-,29-,30+,31+,32-, Kansuinin A