反应详情

4-Methyl-2-oxo-2,3-dihydro-1H-indole-5-sulfonic acid methylamide (0.2 g, 0.83 mmol) was condensed with 4-oxo-2,4,6,7-tetrahydro-pyrano[3,4-c]pyrrole-1-carbaldehyde (1.2 eq, 0.17 g) to give 0.31 g (97%) of the title compound as a yellow solid.