Piperidine → HCID 25114698, compound

Participants

Reaction Steps

5-(2-Dimethylamino-ethyl)-3-methyl-4-oxo-1,4,5,6,7,8-hexahydro-pyrrolo[3,2-c]azepine-2-carbaldehyde 23c (53 mg, 0.2 mmol) was dissolved in 1 ml of methanol under stirring, and added with 5-chloro-1,3-dihydro-indol-2-one (34 mg, 0.2 mmol) and piperidine (0.1 ml) to the solution. Upon the completion of the addition, the mixture was stirred to mix well in dark, heated to reflux for 2 hours and lots of precipitate was formed. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was naturally cooled down to room temperature, and filtered. The filter cake was washed with ethanol and dried to obtain the title compound (Z)-2-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-dimethylamino-ethyl)-3-methyl-5,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-4-one 23 (62 mg, yield 75%) as an orange powder.

Provenance & Evidence