4-(6-Fluoro-pyridin-2-yl)-tetrahydro-pyran-4-carbonitrile → 4-[6-(Imidazo[1,2-a]quinolin-7-ylsulfanyl)-pyridin-2-yl]-tetrahydro-pyran-4-carbonitrile

HRID 2075658Notes

Reaction equation

C(C(CCCC)CO[C:6](=O)[CH2:7][CH2:8][S:9][C:10]1[CH:11]=[C:12]2[C:17](=[CH:18][CH:19]=1)[N:16]1[CH:20]=[CH:21][N:22]=[C:15]1[CH:14]=[CH:13]2)C.FC1[N:34]=[C:33]([C:35]2([C:41]#[N:42])[CH2:40][CH2:39][O:38][CH2:37][CH2:36]2)[CH:32]=CC=1>CN(C=O)C>[CH:20]1[N:16]2[C:17]3[C:12]([CH:13]=[CH:14][C:15]2=[N:22][CH:21]=1)=[CH:11][C:10]([S:9][C:8]1[N:34]=[C:33]([C:35]2([C:41]#[N:42])[CH2:40][CH2:39][O:38][CH2:37][CH2:36]2)[CH:32]=[CH:6][CH:7]=1)=[CH:19][CH:18]=3

Participants

Conditions

Temperature: 90 °C

Procedure

1i (261 mg, 0.6 mmol) and 4-(6-Fluoro-pyridin-2-yl)-tetrahydro-pyran-4-carbonitrile (1j, 123 mg, 0.6 mmol) were dissolved in DMF and degassed with N2 for 10 minutes. Potassium tert-butoxide (81 mg, 0.72 μmmol) was added, and the mixture was degassed with N2 for an additional 10 minutes. The reaction was heated to 90° C. for 24 hours, then cooled to room temperature. The solution was diluted with EtOAc and water, and the aqueous layer was extracted with EtOAc. The combined organic layers were dried over MgSO4, filtered, and concentrated, and the residue was purified by silica gel chromatography to obtain the desired product, 1k.

Workup

customdegassed with N2 for 10 minutes
additionPotassium tert-butoxide (81 mg, 0.72 μmmol) was added
customthe mixture was degassed with N2 for an additional 10 minutes
temperaturecooled to room temperature
additionThe solution was diluted with EtOAc and water
extractionthe aqueous layer was extracted with EtOAc
dry with materialThe combined organic layers were dried over MgSO4
filtrationfiltered
concentrationconcentrated
customthe residue was purified by silica gel chromatography

Sources & evidence

ORD record: ord-bc6118eb68ae4517bf0df4a7c3e4deac
Source dataset: uspto-grants-2011_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07919621B2

Reaction notes

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