5-{[(3Z)-5-(carbamoylamino)-2-oxo-2,3-dihydro-1H-indol-3-ylidene]methyl}-1H-pyrrole-3-carboxylic acid 、
(3S)-(-)-3-(二甲氨基)吡咯烷 在
N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
生成 [(3Z)-3-[(4-{[(3S)-3-(dimethylamino)pyrrolidin-1-yl]carbonyl}-1H-pyrrol-2-yl)methylidene]-2-oxo-2,3-dihydro-1H-indol-5-yl]urea