英文别名(1'R,2R,2'R,3a'R,3a1'R,4'R,6a'R,7a'S,11'S,11a'S,11b'R)-1',2',3a',4',11'-Pentahydroxy-8',11a'-dimethyl-1',3a',4',7',7a',11',11a',11b'-octahydro-2'H,5'H-spiro[oxirane-2,3'-[1,3a1](epoxymethano)dibenzo[de,g]chromene]-5',10'(6a'H)-dione; Pasakbumin B; 13alpha(21)-Epoxyeurycomanone; 13-alpha-(21)-Epoxyeurycomanone; (1R,4R,5R,6R,7R,8R,11R,13S,17S,18S,19R)-4,5,7,8,17-pentahydroxy-14,18-dimethylspiro[3,10-dioxapentacyclo[9.8.0.01,7.04,19.013,18]nonadec-14-ene-6,2'-oxirane]-9,16-dione; Picras-3-ene-2,16-dione, 11,20:13,21-diepoxy-1,11,12,14,15-pentahydroxy-, (1β,11β,12α,15β)- 
