Potassium Carbonate → HCID 44252298, compound

HRID 923161Notes

Reaction equation

Br[CH2:2][CH2:3][O:4][C:5]1[CH:6]=[C:7]([CH:24]=[CH:25][C:26]=1[CH2:27][S:28]([CH3:31])(=[O:30])=[O:29])[C:8]([NH:10][C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[C:13]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=2)[CH:12]=1)=[O:9].C(=O)([O-])[O-].[K+].[K+].[NH:38]1[CH2:43][CH2:42][NH:41][CH2:40][C:39]1=[O:44]>CN(C=O)C>[Cl:17][C:14]1[CH:15]=[CH:16][C:11]([NH:10][C:8](=[O:9])[C:7]2[CH:24]=[CH:25][C:26]([CH2:27][S:28]([CH3:31])(=[O:30])=[O:29])=[C:5]([O:4][CH2:3][CH2:2][N:41]3[CH2:42][CH2:43][NH:38][C:39](=[O:44])[CH2:40]3)[CH:6]=2)=[CH:12][C:13]=1[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][N:19]=1

Participants

Conditions

Temperature: 50 °C

Procedure

3-(2-Bromoethoxy)-N-(4-chloro-3-(pyridin-2-yl)phenyl)-4-(methylsulfonylmethyl)benzamide (50 mg, 0.095 mmol) was dissolved in DMF (1.0 ml) and treated with potassium carbonate (18 mg, 0.13 mmol) and piperazin-2-one (11 mg, 0.11 mmol) for 18 hours. The reaction was heated for 2.0 hours at 50° C., then additional potassium carbonate (18 mg, 0.13 mmol) and piperazin-2-one (11 mg, 0.11 mmol) was added. After 2 hours, the reaction was quenched in 5% NaOH and extracted with ethyl acetate twice. The ethyl acetate extracts were washed with water once, brine once, dried with MgSO4, and purified by reverse phase HPLC to yield 16 mg of N-(4-chloro-3-(pyridin-2-yl)phenyl)-4-(methylsulfonylmethyl)-3-(2-(3-oxopiperazin-1-yl)ethoxy)benzamide. MS (Q1) 558 (M)+.

Workup

customthe reaction was quenched in 5% NaOH
extractionextracted with ethyl acetate twice
washThe ethyl acetate extracts were washed with water once
dry with materialbrine once, dried with MgSO4
custompurified by reverse phase HPLC

Sources & evidence

ORD record: ord-94e332d7b3924eb98e04a7c826623967
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09278961B2

Reaction notes

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