Potassium Carbonate → 1-[4'-(5-fluoro-2,3-dihydroindole-1-carbonyl)-6'-methoxy-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-yl]-1,3-dihydroimidazo[4,5-b]pyridin-2-one

HRID 2059978Notes

Reaction equation

Cl.Cl.[NH:3]1[CH2:8][CH2:7][CH:6]([N:9]2[C:17]3[C:12](=[N:13][CH:14]=[CH:15][CH:16]=3)[NH:11][C:10]2=[O:18])[CH2:5][CH2:4]1.Cl[C:20]1[CH:25]=[C:24]([C:26]([N:28]2[C:36]3[C:31](=[CH:32][C:33]([F:37])=[CH:34][CH:35]=3)[CH2:30][CH2:29]2)=[O:27])[CH:23]=[C:22]([O:38][CH3:39])[N:21]=1.C(=O)([O-])[O-].[K+].[K+]>CN1C(=O)CCC1>[F:37][C:33]1[CH:32]=[C:31]2[C:36](=[CH:35][CH:34]=1)[N:28]([C:26]([C:24]1[CH:23]=[C:22]([O:38][CH3:39])[N:21]=[C:20]([N:3]3[CH2:4][CH2:5][CH:6]([N:9]4[C:17]5[C:12](=[N:13][CH:14]=[CH:15][CH:16]=5)[NH:11][C:10]4=[O:18])[CH2:7][CH2:8]3)[CH:25]=1)=[O:27])[CH2:29][CH2:30]2

Participants

Conditions

Temperature: 130 °C

Procedure

A mixture of 0.361 g (1.24 mmol) 1-piperidin-4-yl-1,3-dihydroimidazo[4,5-b]pyridin-2-one dihydrochloride, 0.380 mg (1.24 mmol) (2-chloro-6-methoxypyridin-4-yl)-(5-fluoro-2,3-dihydroindol-1-yl)-methanone and 514 mg (3.72 mmol) potassium carbonate in 3.0 mL NMP was stirred for 8 h at 130° C. After cooling the reaction mixture to RT the precipitate formed was filtered off and purified by preparative HPLC. The fractions containing the product were combined and evaporated down i. vac.

Workup

temperatureAfter cooling the reaction mixture to RT the precipitate
customformed
filtrationwas filtered off
custompurified by preparative HPLC
additionThe fractions containing the product
customevaporated down i

Sources & evidence

ORD record: ord-7091dda13bc5447eb14fa5c90ec053bf
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08278336B2

Reaction notes

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