Potassium Carbonate → HCID 44252298, compound

HRID 633312Notes

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-c95f70b95acb463fac6d8b0fdd25f88b
Source dataset: uspto-grants-2016_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09321761B2

Reaction notes

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