nitro,bromonaphtho,furan
Furan
29606-32-4(1''S,3R,3''R,5'S,5''R,6''R,7''S)-7''-Methyl-8''-oxo-3',4'-dihydrotrispiro[furan-3,2'-furan-5',2''-[9]oxatricyclo[5.3.3.0~1,6~]tridecane-3'',2'''-oxiran]-5''-yl acetate 103839-72-1Spiro[oxirane-2,8'-[8H-4,8a]propano[1H-2]benzopyran]-9'-one,7'-(acetyloxy)-4'-[2-(acetyloxy)-2-(3-furanyl)ethyl]hexahydro-3'-hydroxy-11'-methyl-,[3'R-[3'a,4'b,4'(S*),4'ab,7'b,8'a,8'ab,11'R*]]-