Sodium Iodide → Tert-butyl 4-[3-(4-isoquinolin-1-ylpiperazin-1-yl)propyl]piperidine-1-carboxylate

HRID 2074305Notes

Reaction equation

CN1C(=O)N(C)CC1.CS(O[CH2:14][CH2:15][CH2:16][CH:17]1[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH2:18]1)(=O)=O.Cl.Cl.[N:32]1([C:38]2[C:47]3[C:42](=[CH:43][CH:44]=[CH:45][CH:46]=3)[CH:41]=[CH:40][N:39]=2)[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]1.C(=O)([O-])[O-].[Cs+].[Cs+].[I-].[Na+]>CCOC(C)=O>[C:38]1([N:32]2[CH2:33][CH2:34][N:35]([CH2:14][CH2:15][CH2:16][CH:17]3[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH2:18]3)[CH2:36][CH2:37]2)[C:47]2[C:42](=[CH:43][CH:44]=[CH:45][CH:46]=2)[CH:41]=[CH:40][N:39]=1

Participants

Conditions

Temperature: 140 °C

Procedure

A DMI (20 ml) suspension of tert-butyl 4-{3-[(methylsulfonyl)oxy]propyl}piperidine-1-carboxylate (1.00 g), 1-piperazin-1-yl-isoquinoline dihydrochloride (980 mg), cesium carbonate (1.02 g) and sodium iodide (467 mg) was stirred at 140° C. for 1 hour. EtOAc was added to the reaction liquid, washed with water and aqueous saturated sodium hydrogencarbonate solution in that order, then dried over anhydrous magnesium sulfate, and the solvent was evaporated. The residue was purified by silica gel column chromatography (eluent: hexane:EtOAc=1:1 (v/v)) to obtain tert-butyl 4-[3-(4-isoquinolin-1-ylpiperazin-1-yl)propyl]piperidine-1-carboxylate (1.07 g) as a pale yellow oil.

Workup

washwashed with water and aqueous saturated sodium hydrogencarbonate solution in that order
dry with materialdried over anhydrous magnesium sulfate
customthe solvent was evaporated
customThe residue was purified by silica gel column chromatography (eluent: hexane:EtOAc=1:1 (v/v))

Sources & evidence

ORD record: ord-429d827532a547b0bf292542a3a059f6
Source dataset: uspto-grants-2011_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07919495B2

Reaction notes

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