Triethylamine → Tert-butyl 4-(2-(3-(2-bromo-4-fluorophenoxy)-5-(3-methoxyphenylthio)pyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate

HRID 1806165Notes

Reaction equation

HRID 1806165 reaction equation
[Br:1][C:2]1[CH:27]=[C:26]([F:28])[CH:25]=[CH:24][C:3]=1[O:4][C:5]1[C:6]([NH:20][C:21]([NH2:23])=[S:22])=[N:7][CH:8]=[C:9]([S:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[CH:13]=2)[CH:10]=1.C(N(CC)CC)C.Br[CH2:37][C:38]([CH:40]1[CH2:45][CH2:44][N:43]([C:46]([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])=[O:47])[CH2:42][CH2:41]1)=O>CCO>[Br:1][C:2]1[CH:27]=[C:26]([F:28])[CH:25]=[CH:24][C:3]=1[O:4][C:5]1[C:6]([NH:20][C:21]2[S:22][CH:37]=[C:38]([CH:40]3[CH2:41][CH2:42][N:43]([C:46]([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])=[O:47])[CH2:44][CH2:45]3)[N:23]=2)=[N:7][CH:8]=[C:9]([S:11][C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[CH:13]=2)[CH:10]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 18187487tert-Butyl 4-(2-Bromoacetyl)piperidine-1-carboxylateHCID 866315271-(3-(2-Bromo-4-fluorophenoxy)-5-(3-methoxyphenylthio)pyridin-2-yl)thiourea

Product 1

HCID 86631529Tert-butyl 4-(2-(3-(2-bromo-4-fluorophenoxy)-5-(3-methoxyphenylthio)pyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylateYield 82%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
70 °C

Procedure

A 50 mL round-bottomed flask was charged with 1-(3-(2-bromo-4-fluorophenoxy)-5-(3-methoxyphenylthio)pyridin-2-yl)thiourea (1.5 g, 3.12 mmol), triethylamine (0.740 mL, 5.31 mmol), tert-butyl 4-(2-bromoacetyl)piperidine-1-carboxylate (1.15 g, 3.75 mmol), and EtOH (25 mL). The reaction was heated to 70° C. for 3 hours. The reaction was cooled to room temperature and partitioned between EtOAc and water. The organic layer was dried over sodium sulfate, filtered and concentrated. The residue was purified on silica gel (10% EtOAc in hexanes) to afford (1.76 g, 82.0% yield).

Workup

  1. temperatureThe reaction was cooled to room temperature
  2. custompartitioned between EtOAc and water
  3. dry with materialThe organic layer was dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified on silica gel (10% EtOAc in hexanes)
  7. customto afford (1.76 g, 82.0% yield)

Sources & evidence

ORD record
ord-b8736c05a9414b76b34c5f6eaf60c97c
Source dataset
uspto-grants-2013_01
Patent number
US08354540B2

Reaction notes

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