Cumylamine → 5-(3-iodo-1-tosyl-1H-indol-5-yl)-N-(2-phenylpropan-2-yl)-1,3,4-oxadiazol-2-amine

HRID 634216Notes

Reaction equation

HRID 634216 reaction equation
F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[I:28][C:29]1[C:37]2[C:32](=[CH:33][CH:34]=[C:35]([C:38]3[O:42][C:41](=O)[NH:40][N:39]=3)[CH:36]=2)[N:31]([S:44]([C:47]2[CH:53]=[CH:52][C:50]([CH3:51])=[CH:49][CH:48]=2)(=[O:46])=[O:45])[CH:30]=1.[C:54]1([C:60]([NH2:63])([CH3:62])[CH3:61])[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=1.C(N(C(C)C)CC)(C)C>CN(C=O)C.O>[I:28][C:29]1[C:37]2[C:32](=[CH:33][CH:34]=[C:35]([C:38]3[O:42][C:41]([NH:63][C:60]([C:54]4[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=4)([CH3:62])[CH3:61])=[N:40][N:39]=3)[CH:36]=2)[N:31]([S:44]([C:47]2[CH:53]=[CH:52][C:50]([CH3:51])=[CH:49][CH:48]=2)(=[O:45])=[O:46])[CH:30]=1

Participants

7

Reactant 4

HCID 68509Cumylamine2×HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate2×HCID 683283805-(3-iodo-1-tosyl-1H-indol-5-yl)-1,3,4-oxadiazol-2(3H)-one

Product 1

HCID 683287405-(3-iodo-1-tosyl-1H-indol-5-yl)-N-(2-phenylpropan-2-yl)-1,3,4-oxadiazol-2-amineYield 19%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

BOP (455 mg, 1.029 mmol) was added to a stirred mixture of 5-(3-iodo-1-tosyl-1H-indol-5-yl)-1,3,4-oxadiazol-2(3H)-one (450 mg, 0.935 mmol), 2-phenylpropan-2-amine (0.442 mL, 3.27 mmol) and diisopropylethylamine (0.33 mL, 1.87 mmol) in DMF (5.0 mL). The mixture was stirred at RT for 14 h. It was treated with BOP (300 mg) and 2-phenylpropan-2-amine (0.3 mL) and heated to 65° C. for 3 h. The mixture was diluted with water and extracted with EtOAc (50 mL). The organic layer was washed with brine, dried over MgSO4, and concentrated. Purification (eluting with 20-70% EtOAc in Hex) afforded 5-(3-iodo-1-tosyl-1H-indol-5-yl)-N-(2-phenylpropan-2-yl)-1,3,4-oxadiazol-2-amine (103.6 mg, 19%) as a white amorphous solid. MS (ESI, pos. ion) m/z: 601.0 (M+1).

Workup

  1. temperatureheated to 65° C. for 3 h
  2. extractionextracted with EtOAc (50 mL)
  3. washThe organic layer was washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. customPurification (eluting with 20-70% EtOAc in Hex)

Sources & evidence

ORD record
ord-34f910f7b04749589ffde63eeed175f9
Source dataset
uspto-grants-2016_04
Patent number
US09321756B2

Reaction notes

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