Triethylamine → N-(5-(benzo[c][1,2,5]oxadiazol-5-yloxy)-2,3-dihydro-1H-inden-1-yl)propane-2-sulfonamide

HRID 473091Notes

Reaction equation

HRID 473091 reaction equation
CC1(C)C(C)(C)OB([C:9]2[CH:17]=[CH:16][C:12]3=[N:13][O:14][N:15]=[C:11]3[CH:10]=2)O1.[OH:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][CH:28]=1)[CH:25]([NH:29][S:30]([CH:33]([CH3:35])[CH3:34])(=[O:32])=[O:31])[CH2:24][CH2:23]2.C(N(CC)CC)C>C(Cl)Cl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[N:13]1[O:14][N:15]=[C:11]2[CH:10]=[C:9]([O:19][C:20]3[CH:21]=[C:22]4[C:26](=[CH:27][CH:28]=3)[CH:25]([NH:29][S:30]([CH:33]([CH3:35])[CH3:34])(=[O:32])=[O:31])[CH2:24][CH2:23]4)[CH:17]=[CH:16][C:12]=12

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 467380042,1,3-Benzoxadiazole-5-boronic acid, pinacol esterHCID 70223457N-(5-hydroxy-2,3-dihydro-1H-inden-1-yl)propane-2-sulfonamide

Product 1

HCID 70223362N-(5-(benzo[c][1,2,5]oxadiazol-5-yloxy)-2,3-dihydro-1H-inden-1-yl)propane-2-sulfonamide

Reagents, catalysts & solvents 2

HCID 8895Cupric acetateCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[c][1,2,5]oxadiazole (0.313 mmol, 77 mg), N-(5-hydroxy-2,3-dihydro-1H-inden-1-yl)propane-2-sulfonamide (0.157 mmol, 40 mg), copper (II)acetate (0.157 mmol, 28.5 mg), triethylamine (0.783 mmol, 0.110 mL, 79 mg) and 4A molecular sieves (100 mg) in DCM (1 mL) was stirred at room temperature for 60 h. The reaction mixture was filtered through dicalite and the pad washed with MeOH before the filtrate was concentrated to dryness. The residue was purified by prep HPLC to give a brown film (32. mg, 5.5%). MS (ESI): m/z [M+H]+ 374.0

Workup

  1. filtrationThe reaction mixture was filtered through dicalite
  2. washthe pad washed with MeOH before the filtrate
  3. concentrationwas concentrated to dryness
  4. customThe residue was purified by prep HPLC
  5. customto give a brown film (32. mg, 5.5%)

Sources & evidence

ORD record
ord-88de6eda68fc4e83922d2c0746be78ac
Source dataset
uspto-grants-2014_01
Patent number
US08633237B2

Reaction notes

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