叔丁基二甲硅基三氟甲磺酸酯 、
8-[3-(2-Benzyloxy-4,5-dimethoxyphenyl)-1,3-dioxoprop-1-yl]-8-(1-oxo-3-phenylthio-2-propyn-1-yl)-1,9-dimethoxy-3-methyl-6,7-dihydro-8H-cyclopent[g]isoquinoline 以9.0 mg的产率得到8,9-[Di(tert-butyl)silylenedioxy]-1',5,6,9'-tetramethoxy-3'-methyl-4-phenylthio-6',7'-dihydrospiro[2H-benz[f]indene-2,8'-8'H-cyclopent[g]isoquinoline]-1,3-dione