Diisopropylethylamine → 4-Bromophenyl 4-(1-(4-(methylsulfonyl)phenyl)-2-oxo-1,2-dihydropyridin-4-yloxy)piperidine-1-carboxylate

HRID 1676177Notes

Reaction equation

HRID 1676177 reaction equation
Cl.[CH3:2][S:3]([C:6]1[CH:11]=[CH:10][C:9]([N:12]2[CH:17]=[CH:16][C:15]([O:18][CH:19]3[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]3)=[CH:14][C:13]2=[O:25])=[CH:8][CH:7]=1)(=[O:5])=[O:4].C(N(C(C)C)CC)(C)C.Cl[C:36]([O:38][C:39]1[CH:44]=[CH:43][C:42]([Br:45])=[CH:41][CH:40]=1)=[O:37]>C(Cl)Cl>[CH3:2][S:3]([C:6]1[CH:11]=[CH:10][C:9]([N:12]2[CH:17]=[CH:16][C:15]([O:18][CH:19]3[CH2:24][CH2:23][N:22]([C:36]([O:38][C:39]4[CH:44]=[CH:43][C:42]([Br:45])=[CH:41][CH:40]=4)=[O:37])[CH2:21][CH2:20]3)=[CH:14][C:13]2=[O:25])=[CH:8][CH:7]=1)(=[O:4])=[O:5]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 52377364-Bromophenyl chloroformateHCID 673669641-(4-(methylsulfonyl)phenyl)-4-(piperidin-4-yloxy)pyridin-2(1H)-one hydrochloric acid

Product 1

HCID 673694054-Bromophenyl 4-(1-(4-(methylsulfonyl)phenyl)-2-oxo-1,2-dihydropyridin-4-yloxy)piperidine-1-carboxylateYield 73%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Procedure

To a mixture of 1-(4-(methylsulfonyl)phenyl)-4-(piperidin-4-yloxy)pyridin-2(1H)-one hydrochloric acid (154 mg, 0.40 mmol) and diisopropylethylamine (0.35 mL, 0.20 mmol) in CH2Cl2 (1.5 mL) at room temperature was added 4-bromophenyl chloroformate (prepared according to procedures described at Step B of Example 2 substituting 4-bromophenol for 1,1,1-trifluoro-2-propanol) in CH2Cl2 (1.0 mL). The resulting mixture was stirred at room temperature for 3 hrs, diluted with CH2Cl2 and washed with water and brine. The organic layer was dried (Na2SO4) and evaporated under reduced pressure. The crude product was purified by flash chromatography on silica gel (0-100% EtOAc/Hexanes) to give the title compound (159 mg, 73%) as a light yellow solid. MS (ESI) 547, 549 (M+H).

Workup

  1. washwashed with water and brine
  2. dry with materialThe organic layer was dried (Na2SO4)
  3. customevaporated under reduced pressure
  4. customThe crude product was purified by flash chromatography on silica gel (0-100% EtOAc/Hexanes)

Sources & evidence

ORD record
ord-e15d6a5620484623864d2415dab326ad
Source dataset
uspto-grants-2011_08
Patent number
US08003796B2

Reaction notes

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