Potassium Iodide → 6-Acetyl-3-ethyl-2-(2-(4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidin-1-yl)ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine

HRID 1734091Notes

Reaction equation

[C:1]([N:4]1[CH2:9][CH2:8][C:7]2[C:10]([CH2:16][CH3:17])=[C:11]([CH2:13][CH2:14]Cl)[S:12][C:6]=2[CH2:5]1)(=[O:3])[CH3:2].Cl.[F:19][C:20]1[CH:34]=[CH:33][C:23]2[C:24]([CH:27]3[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]3)=[N:25][S:26][C:22]=2[CH:21]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CN(C)C=O.C1(C)C=CC=CC=1.O>[C:1]([N:4]1[CH2:9][CH2:8][C:7]2[C:10]([CH2:16][CH3:17])=[C:11]([CH2:13][CH2:14][N:30]3[CH2:29][CH2:28][CH:27]([C:24]4[C:23]5[CH:33]=[CH:34][C:20]([F:19])=[CH:21][C:22]=5[S:26][N:25]=4)[CH2:32][CH2:31]3)[S:12][C:6]=2[CH2:5]1)(=[O:3])[CH3:2]

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 0.5 g of 6-acetyl-2-(2-chloroethyl)-3-ethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine, 0.5 g of 4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidine hydrochloride, 1.5 g of potassium carbonate and 0.5 g of potassium iodide in 25 ml of dimethylformamide and 25 ml of toluene was stirred at 70° C. for 7 hours and poured into water. The toluene layer was washed with water, dried over magnesium sulfate and concentrated. The residue was purified by column chromatography on a silica gel to give 0.5 g of 6-acetyl-3-ethyl-2-(2-(4-(6-fluoro-1,2-benzisothiazol-3-yl)piperidin-1-yl)ethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine as an oil.

Workup

washThe toluene layer was washed with water
dry with materialdried over magnesium sulfate
concentrationconcentrated
customThe residue was purified by column chromatography on a silica gel

Sources & evidence

ORD record: ord-64c8d7866b5749b68c9f5733b6a1bb84
Source dataset: uspto-grants-1996_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05532240

Reaction notes

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