5-(2-diethylaminoethyl)-3-methyl-4-oxo-4,5,6,7,8,9-hexahydro-1H-1,5-diazacyclopentacyclooctene-2-carbaldehyde 、
5-溴氧化吲哚 在
2-(5-bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-6,7,8,9-tetrahydro-1H,5H-1,5-diaza-cyclopentacycloocten-4-one 作用下,
以to obtain 2-(5-bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-6,7,8,9-tetrahydro-1H,5H-1,5-diaza-cyclopentacycloocten-4-one 61 (16 mg, yield 68%) as a yellow solid的产率得到2-(5-bromo-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-6,7,8,9-tetrahydro-1H,5H-1,5-diaza-cyclopentacycloocten-4-one