Acetic Acid → 4-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}-N-(3-phenylpropyl)-1,3-thiazol-2-amine

HRID 1258594Notes

Reaction equation

HRID 1258594 reaction equation
[CH3:1][S:2][C:3]1[CH:4]=[C:5]([C:9](=[N:16][O:17][CH2:18][C:19]2[N:20]=[C:21]([NH2:24])[S:22][CH:23]=2)[C:10]2[N:14]([CH3:15])[N:13]=[N:12][N:11]=2)[CH:6]=[CH:7][CH:8]=1.[C:25]1([CH2:31][CH2:32][CH:33]=O)[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl.ClCCl.C([O-])(O)=O.[Na+]>[CH3:1][S:2][C:3]1[CH:4]=[C:5]([C:9](=[N:16][O:17][CH2:18][C:19]2[N:20]=[C:21]([NH:24][CH2:33][CH2:32][CH2:31][C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[S:22][CH:23]=2)[C:10]2[N:14]([CH3:15])[N:13]=[N:12][N:11]=2)[CH:6]=[CH:7][CH:8]=1

Participants

8

Reactant 4

HCID 176Acetic Acid2×HCID 7707Benzenepropanal2×HCID 5049666Sodium triacetoxyborohydride2×HCID 866531454-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}-1,3-thiazol-2-amine

Product 1

HCID 866531464-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}-N-(3-phenylpropyl)-1,3-thiazol-2-amineYield 58%

Reagents, catalysts & solvents 3

HCID 111,2-DichloroethaneSolventHCID 6344DichloromethaneSolventHCID 516892Sodium BicarbonateSolvent

Procedure

To a stirred solution of 4-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}-1,3-thiazol-2-amine (90.0 mg, 0.25 mmol) in dry 1,2-dichloroethane (5 mL), under argon atmosphere, were added 3-phenylpropionaldehyde (63.5 mg, 0.47 mmol), acetic acid (89.7 mg, 1.49 mmol) and sodium triacetoxyborohydride (156 mg, 0.70 mmol) at room temperature. After stirring at room temperature for 18 h, 3-phenylpropionaldehyde (63.5 mg, 0.47 mmol), acetic acid (89.7 mg, 1.49 mmol) and sodium triacetoxyborohydride (156 mg, 0.70 mmol) were added again and the reaction mixture was further stirred at room temperature for 20 h. The reaction mixture was diluted with dichloromethane (10 mL) and sat. aq. NaHCO3 (10 mL) was added. After phase separation, the aqueous layer was washed with ethyl acetate (3×10 mL), the combined organic layers were washed with water (10 mL), dried over MgSO4 and concentrated in vacuo. Purification on silica gel afforded 4-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}-N-(3-phenylpropyl)-1,3-thiazol-2-amine as a pale yellow oil [69 mg, yield 58%; HPLC/MS m/z=481 (M+H); logP(HCOOH)=3.71].

Workup

  1. stirringthe reaction mixture was further stirred at room temperature for 20 h
  2. additionwas added
  3. customAfter phase separation
  4. washthe aqueous layer was washed with ethyl acetate (3×10 mL)
  5. washthe combined organic layers were washed with water (10 mL)
  6. dry with materialdried over MgSO4
  7. concentrationconcentrated in vacuo
  8. customPurification on silica gel

Sources & evidence

ORD record
ord-58f2c3f51fce400f866fc4eb0fa671c7
Source dataset
uspto-grants-2013_06
Patent number
US08466176B2

Reaction notes

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