5-[(R)-2-{Benzyl-[2-(4-nitrophenyl)ethyl]amino}-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one → 5-[(R)-2-{[2-(4-Aminophenyl)ethyl]benzylamino}-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one

HRID 1468532Notes

Reaction equation

HRID 1468532 reaction equation
[CH2:1]([N:8]([CH2:38][CH2:39][C:40]1[CH:45]=[CH:44][C:43]([N+:46]([O-])=O)=[CH:42][CH:41]=1)[CH2:9][C@@H:10]([C:19]1[CH:28]=[CH:27][C:26]([O:29][CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)=[C:25]2[C:20]=1[CH:21]=[CH:22][C:23](=[O:37])[NH:24]2)[O:11][Si:12]([C:15]([CH3:18])([CH3:17])[CH3:16])([CH3:14])[CH3:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>CCO.CC(O)=O.[Fe].O.O.O.O.[Fe](Cl)Cl>[NH2:46][C:43]1[CH:42]=[CH:41][C:40]([CH2:39][CH2:38][N:8]([CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)[CH2:9][C@@H:10]([C:19]2[CH:28]=[CH:27][C:26]([O:29][CH2:30][C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)=[C:25]3[C:20]=2[CH:21]=[CH:22][C:23](=[O:37])[NH:24]3)[O:11][Si:12]([C:15]([CH3:18])([CH3:16])[CH3:17])([CH3:14])[CH3:13])=[CH:45][CH:44]=1

Participants

6

Reactant 1

HCID 667718165-[(R)-2-{Benzyl-[2-(4-nitrophenyl)ethyl]amino}-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one

Product 1

HCID 667720895-[(R)-2-{[2-(4-Aminophenyl)ethyl]benzylamino}-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one

Reagents, catalysts & solvents 4

HCID 23925IronCatalystHCID 16211588Ferrous chloride tetrahydrateCatalystHCID 176Acetic AcidSolventHCID 702EthanolSolvent

Procedure

A mixture of 5-[(R)-2-{benzyl-[2-(4-nitrophenyl)ethyl]amino}-1-(tert-butyldimethylsilanyloxy)ethyl]-8-benzyloxy-1H-quinolin-2-one (3.00 g, 4.52 mmol); iron (2.52 g, 45.2 mmol) and iron(II) chloride tetrahydrate (0.18 g, 0.90 mmol) in EtOH (27.3 mL) and AcOH (9.09 mL) was stirred at 80° C. overnight. The reaction mixture was filtered through a pad of Celite, washing with EtOAc (20 mL). The organic layer was washed with brine (10 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure to give the title compound, which was used without any further purification.

Workup

  1. filtrationThe reaction mixture was filtered through a pad of Celite
  2. washwashing with EtOAc (20 mL)
  3. washThe organic layer was washed with brine (10 mL)
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-5efc635a64fa4dd5b8dd5e65c2165da9
Source dataset
uspto-grants-2015_04
Patent number
US09000173B2

Reaction notes

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