Synonyms: Formamide,N-[(1E,3R,4R,5R,9S,10S,11S)-10-hydroxy-11-[(1S,2'S,3S,5S,7R,8S,9R,12E,14E,17S,19R)-17-hydroxy-3,5,7-trimethoxy-8,14-dimethyl-11-oxospiro[10,23-dioxabicyclo[17.3.1]tricosa-12,14,20-triene-4,2'-oxiran]-9-yl]-4-methoxy-3,5,9-trimethyl-6-oxo-1-dodecenyl]-N-methyl-(9CI); Scytophycin B; Spiro[10,23-dioxabicyclo[17.3.1]tricosane-4,2'-oxirane],scytophycin B deriv.; Formamide, N-[10-hydroxy-11-(17-hydroxy-3,5,7-trimethoxy-8,14-dimethyl-11-oxospiro[10,23-dioxabicyclo[17.3.1]tricosa-12,14,20-triene-4,2'-oxiran]-9-yl)-4-methoxy-3,5,9-trimethyl-6-oxo-1-dodecenyl]-N-methyl-,[1S-[1R*,3R*,4R*,5R*,7S*,8R*,9S*(1E,3S*,4S*,5S*,9R*,10R*,11R*),12E,14E,17R*,19S*]]-;[1S-[1R*,3R*,4R*,5R*,7S*,8R*,9S*(1E,3S*,4S*,5S*,9R*,10R*,11R*),12E,14E,17R*,19S*]]-N-[10-Hydroxy-11-(17-hydroxy-3,5,7-trimethoxy-8,14-dimethyl-11-oxospiro[10,23-dioxabicyclo[17.3.1]tricosa-12,14,20-triene-4,2'-oxiran]-9-yl)-4-methoxy-3,5,9-trimethyl-6-oxo-1-dodecenyl]-N-methylformamide