Ammonium Chloride → Tert-butyl 4-(2-(3-phenoxy-5-(thieno[3,2-b]pyridin-7-ylthio)pyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate

HRID 335140Notes

Reaction equation

HRID 335140 reaction equation
COC(=O)CC[S:6][C:7]1[CH:8]=[C:9]([O:32][C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C:10]([NH:13][C:14]2[S:15][CH:16]=[C:17]([CH:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)[N:18]=2)=[N:11][CH:12]=1.Cl[C:41]1[CH:46]=[CH:45][N:44]=[C:43]2[CH:47]=[CH:48][S:49][C:42]=12.CC([O-])(C)C.[K+].[NH4+].[Cl-]>CS(C)=O>[O:32]([C:9]1[C:10]([NH:13][C:14]2[S:15][CH:16]=[C:17]([CH:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)[N:18]=2)=[N:11][CH:12]=[C:7]([S:6][C:41]2[CH:46]=[CH:45][N:44]=[C:43]3[CH:47]=[CH:48][S:49][C:42]=23)[CH:8]=1)[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1

Participants

6

Reactant 4

HCID 25517Ammonium ChlorideHCID 112752517-Chlorothieno[3,2-b]pyridineHCID 23665647Potassium tert-butoxideHCID 86631496Tert-butyl 4-(2-(5-(3-methoxy-3-oxopropylthio)-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate

Product 1

HCID 86631497Tert-butyl 4-(2-(3-phenoxy-5-(thieno[3,2-b]pyridin-7-ylthio)pyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A 25 mL round-bottomed flask was charged with tert-butyl 4-(2-(5-(3-methoxy-3-oxopropylthio)-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate (500 mg, 0.876 mmol), 7-chlorothieno[3,2-b]pyridine (178 mg, 1.05 mmol), and DMSO (8 mL). Nitrogen was bubbled through the solution for 10 minutes. Potassium 2-methylpropan-2-olate (295 mg, 2.63 mmol) was added and stirred at room temperature for 30 minutes. The reaction was poured into saturated aqueous NH4Cl and extracted with EtOAc (2×20 mL). The organic layer was dried with sodium sulfate, filtered and concentrated. The residue was purified on silica (50% EtOAc in hexanes) to afford tert-butyl 4-(2-(3-phenoxy-5-(thieno[3,2-b]pyridin-7-ylthio)pyridin-2-ylamino)thiazol-4-yl)piperidine-1-carboxylate.

Workup

  1. customNitrogen was bubbled through the solution for 10 minutes
  2. extractionextracted with EtOAc (2×20 mL)
  3. dry with materialThe organic layer was dried with sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified on silica (50% EtOAc in hexanes)

Sources & evidence

ORD record
ord-d6691c85f34448aba6c063828bbb7812
Source dataset
uspto-grants-2014_11
Patent number
US08883828B2

Reaction notes

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