Piperidine → 5-(2-hydroxy-3-morpholinopropyl)-3-methyl-5,6,7,8-tetrahydropyrrolo[3,2-c]azepin-4(1H)-one

Participants

Reaction Steps

(S)-5-(2-Hydroxy-3-morpholin-4-yl-propyl)-3-methyl-4-oxo-1,4,5,6,7,8-hexa hydro-pyrrolo[3,2-c]azepine-2-carbaldehyde 78f (40 mg, 0.12 mmol) and 7-bromo-5-fluoro-1,3-dihydro-indol-2-one 4b (27 mg, 0.12 mmol) were dissolved in 1.5 ml of ethanol, and added with 6 μl of piperidine to the solution at room temperature. Upon completion of the addition, the reaction mixture was reacted at 45° C. for 16 hours. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was naturally cooled to room temperature, and filtered. The filter cake was washed with anhydrous ethanol (1 ml×2) and dried to obtain the title compound (S,Z)-2-(7-bromo-5-fluoro-2-oxoindolin-3-ylidene)methyl)-5-(2-hydroxy-3-morpholinopropyl)-3-methyl-5,6,7,8-tetrahydropyrrolo[3,2-c]azepin-4(1H)-one 82 (48 mg, yield 73.8%) as a yellow solid.

Provenance & Evidence