1,2-Dichloroethane → N-(2-((5-(methoxymethyl)thiophen-2-yl)methyl)-2H-1,2,3-triazol-4-yl)-5-phenyloxazole-4-carboxamide

HRID 82793Notes

Reaction equation

HRID 82793 reaction equation
N#N.[C:3]1([C:9]2[O:13][CH:12]=[N:11][C:10]=2[C:14]([OH:16])=O)[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl.CCN(C(C)C)C(C)C.[CH3:40][O:41][CH2:42][C:43]1[S:47][C:46]([CH2:48][N:49]2[N:53]=[C:52]([NH2:54])[CH:51]=[N:50]2)=[CH:45][CH:44]=1>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH3:40][O:41][CH2:42][C:43]1[S:47][C:46]([CH2:48][N:49]2[N:53]=[C:52]([NH:54][C:14]([C:10]3[N:11]=[CH:12][O:13][C:9]=3[C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][CH:8]=3)=[O:16])[CH:51]=[N:50]2)=[CH:45][CH:44]=1

Participants

9

Reactant 6

HCID 111,2-DichloroethaneHCID 947NitrogenHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27762995-Phenyl-1,3-oxazole-4-carboxylic acidHCID 679582202-((5-(methoxymethyl)thiophen-2-yl)methyl)-2H-1,2,3-triazol-4-amine

Product 1

HCID 86698195N-(2-((5-(methoxymethyl)thiophen-2-yl)methyl)-2H-1,2,3-triazol-4-yl)-5-phenyloxazole-4-carboxamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent3×

Procedure

In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a solution of commercially available 5-phenyloxazole-4-carboxylic acid (120 mg, 0.62 mmol) in CH2Cl2 (4.0 mL) was treated at rt with DMAP (19 mg, 0.15 mmol), HOBt (103 mg, 0.74 mmol), EDC (301 mg, 1.54 mmol) and DIPEA (0.5 mL, 2.77 mmol) and the resulting mixture was stirred for 15 min at rt. A solution of 2-((5-(methoxymethyl)thiophen-2-yl)methyl)-2H-1,2,3-triazol-4-amine (131 mg, 0.61 mmol) in CH2Cl2 (8.0 mL) was then added and the reaction mixture was stirred overnight at rt. The mixture was diluted with CH2Cl2 (15.0 mL), the layers were separated and the org. phase was washed with 1N HCl (15.0 mL), water (15.0 mL), followed by brine (15.0 mL) and dried over MgSO4, filtered and the solvents were removed under reduced pressure. Purification of the residue by FC (gradient from 85:15 hept-EA to 70:30 hept-EA) gave the title compound as a white solid. TLC: rf (7:3 hept-EA)=0.2. LC-MS-conditions 07: tR=0.90 min, [M+H]+=396.03

Workup

  1. stirringthe reaction mixture was stirred overnight at rt
  2. customthe layers were separated
  3. washphase was washed with 1N HCl (15.0 mL), water (15.0 mL)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. customthe solvents were removed under reduced pressure
  7. customPurification of the residue by FC (gradient from 85:15 hept-EA to 70:30 hept-EA)

Sources & evidence

ORD record
ord-105e462cb4414cc8a354059d94573dc1
Source dataset
uspto-grants-2014_09
Patent number
US08846733B2

Reaction notes

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