IUPAC:(1R,3'S,4S,6R,7R)-3',6,7,14-tetramethyl-3,8,17-trioxo-2,9-dioxa-14-azaspiro[bicyclo[9.5.1]heptadecane-4,2'-oxiran]-11-en-7-yl acetate
IUPAC:(1R,3'S,4S,6R,7R)-3',6,7,14-tetramethyl-3,8,17-trioxo-2,9-dioxa-14-azaspiro[bicyclo[9.5.1]heptadecane-4,2'-oxiran]-11-en-7-yl acetate