5-(Chloromethyl)-2-isopropylthiazole 、
2-(bromomethyl)tetrahydro-2H-pyran 、 7'-(trifluoromethyl)spiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-2'(1'H)-one 、 以1′-[(2-isopropyl-1,3-thiazol-5-yl)methyl]-7′-(trifluoromethyl)spiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-2′(1′H)-one was obtained (51%) as a colorless solid的产率得到1'-[(2-isopropyl-1,3-thiazol-5-yl)methyl]-7'-(trifluoromethyl)spiro[furo[2,3-f][1,3]benzodioxole-7,3'-indol]-2'(1'H)-one