Hydrochloric Acid → 1-(4-(2-(5-Bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidin-1-yl)ethanone hydrochloride

HRID 1809548Notes

Reaction equation

HRID 1809548 reaction equation
[ClH:1].Cl.[Br:3][C:4]1[CH:5]=[C:6]([O:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:7]([NH:10][C:11]2[S:12][CH:13]=[C:14]([CH:16]3[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]3)[N:15]=2)=[N:8][CH:9]=1.C(N(CC)CC)C.[C:36](OC(=O)C)(=[O:38])[CH3:37].C([O-])(O)=O.[Na+].Cl>C1COCC1>[ClH:1].[Br:3][C:4]1[CH:5]=[C:6]([O:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:7]([NH:10][C:11]2[S:12][CH:13]=[C:14]([CH:16]3[CH2:21][CH2:20][N:19]([C:36](=[O:38])[CH3:37])[CH2:18][CH2:17]3)[N:15]=2)=[N:8][CH:9]=1

Participants

7

Reactant 5

HCID 313Hydrochloric AcidHCID 7918Acetic AnhydrideHCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 866314825-bromo-3-phenoxy-N-(4-(piperidin-4-yl)thiazol-2-yl)pyridin-2-amine dihydrochloride

Product 1

HCID 249445161-(4-(2-(5-Bromo-3-phenoxypyridin-2-ylamino)thiazol-4-yl)piperidin-1-yl)ethanone hydrochlorideYield 58.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A 20 mL vial was charged with 5-bromo-3-phenoxy-N-(4-(piperidin-4-yl)thiazol-2-yl)pyridin-2-amine dihydrochloride (80 mg, 0.159 mmol), triethylamine (0.088 mL, 0.64 mmol) and THF (2 mL). Acetic anhydride (0.015 mL, 0.16 mmol) was added and stirred at ambient temperature for 30 minutes. The reaction was poured into saturated aqueous NaHCO3 and extract with EtOAc (2×20 mL). The organic layer was dried with sodium sulfate, filtered and concentrated in vacuo. The residue was purified on silica gel (5% methanol in EtOAc) to afford the title compound (47.6 mg, 58.8% yield) as a white solid after HCl salt formation. 1H NMR (d6-DMSO) δ 11.00 (bs, 1H), 8.23 (d, 1H), 7.44 (m, 2H), 7.40 (d, 1H), 7.21 (t, 1H), 7.11 (d, 2H), 6.70 (s, 1H), 4.41 (d, 1H), 3.12 (m, 1H), 2.83 (tt, 1H), 2.62 (td, 1H), 2.50 (m, 1H), 2.00 (s, 3H), 1.93 (m, 2H), 1.55 (qd, 1H), 1.42 (qd, 1H). Mass spectrum (apci) m/z=475.2 (M+H—HCl).

Workup

  1. extractionextract with EtOAc (2×20 mL)
  2. dry with materialThe organic layer was dried with sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified on silica gel (5% methanol in EtOAc)

Sources & evidence

ORD record
ord-82d68f1b76524e3cbed70853375a78cc
Source dataset
uspto-grants-2013_01
Patent number
US08362037B2

Reaction notes

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