Spiro[furo[2,​3-​f]​-​1,​3-​benzodioxole-​7(6H)​,​3'-​[3H]​indol]​-​2'(1'H)​-​one,1'-​[[5-​(trifluoromethyl)​-​2-​furanyl]​methyl [ 1259933-16-8 ]