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n-[ethyl(3-methylbutyl)amino]-3-methyl-1-fenylspiro[[1]benzopyraan[2,3-c]pyrazool-4(1h),1'(3'h)-isobenzofuraan]-3'-on
n-[ethyl(3-methylbutyl)amino]-3-methyl-1-phenyl-spiro[[1]benzo-pyrano[2,3-c]pyrazole-4(1h),1'(3'h)-isobenzofuran]-3'-one