Dibenzyl ether → HCID 178484195, compound

HRID 424901Notes

Reaction equation

HRID 424901 reaction equation
C(OCC1C=CC=CC=1)C1C=CC=CC=1.C([O:23][C:24]1[CH:29]=[C:28]([O:30]CC2C=CC=CC=2)[C:27]([CH:38]([CH3:40])[CH3:39])=[CH:26][C:25]=1[C:41]1[N:42]([C:47]2[CH:48]=[C:49]3[C:53](=[CH:54][CH:55]=2)[N:52]([CH2:56][CH2:57][NH:58][CH3:59])[CH:51]=[CH:50]3)[C:43]([OH:46])=[N:44][N:45]=1)C1C=CC=CC=1>>[OH:46][C:43]1[N:42]([C:47]2[CH:48]=[C:49]3[C:53](=[CH:54][CH:55]=2)[N:52]([CH2:56][CH2:57][NH:58][CH3:59])[CH:51]=[CH:50]3)[C:41]([C:25]2[CH:26]=[C:27]([CH:38]([CH3:40])[CH3:39])[C:28]([OH:30])=[CH:29][C:24]=2[OH:23])=[N:45][N:44]=1

Participants

3

Reactant 2

HCID 7657Dibenzyl etherHCID 178484196HCID 178484196, compound

Product 1

HCID 178484195HCID 178484195, compound

Procedure

The benzylether [5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-4-(1-(2-(methylamino)ethyl)-1H-indol-5-yl)-4H-1,2,4-triazol-3-ol; 294 mg, 0.5 mmol) was dissolved in 6 ml degassed ethyl acetate and ethanol (1:1). 50 mg Pd/C (10%) was added and the mixture stirred under hydrogen (balloon) at rt for 6 h. After filtration the solvent was removed and the crude purified by chromatography on silica with DCM/MeOH (5-20%)/NH4OH (0.5%) to yield 203 mg (0.5 mmol) 4-(5-hydroxy-4-(1-(2-(methylamino)ethyl)-1H-indol-5-yl)-4H-1,2,4-triazol-3-yl)-6-isopropylbenzene-1,3-diol. This amine (203 mg) was added to 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)butanoic acid (110 mg, 0.6 mmol), EDC (154 mg, 0.8 mmol) and HOBt (108 mg, 0.8 mmol) in 9 ml DCM/DMF (2:1) at rt. The mixture was stirred for 12 h and then ethyl acetate and water added. The aq. Phase was extracted twice with ethyl acetate and the combined organic extracts washed with brine and dried over MgSO4. The crude was purified by chromatography on silica with DCM/MeOH (0-8%) to yield 133 mg (0.23 mmol) N-(2-(5-(3-(2,4-dihydroxy-5-isopropylphenyl)-5-hydroxy-4H-1,2,4-triazol-4-yl)-1H-indol-1-yl)ethyl)-4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-N-methylbutanamide.

Workup

  1. dissolution294 mg, 0.5 mmol) was dissolved in 6 ml
  2. customdegassed ethyl acetate and ethanol (1:1)
  3. addition50 mg Pd/C (10%) was added
  4. filtrationAfter filtration the solvent
  5. customwas removed
  6. customthe crude purified by chromatography on silica with DCM/MeOH (5-20%)/NH4OH (0.5%)

Sources & evidence

ORD record
ord-24ad3b7d82494c94974a724d7ed7dbd1
Source dataset
uspto-grants-2012_01
Patent number
US08106083B2

Reaction notes

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