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Hexane → 2-[5-(dimethoxymethyl)-4,5-dihydro-1,3-thiazol-2-yl]-5-(2-methoxyethoxy)-1H-indol-7-amine

HRID 1994848
Notes
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Reaction equation

HRID 1994848 reaction equation
[CH3:1][O:2][CH:3]([O:26][CH3:27])[CH:4]1[S:8][C:7]([C:9]2[NH:10][C:11]3[C:16]([CH:17]=2)=[CH:15][C:14]([O:18][CH2:19][CH2:20][O:21][CH3:22])=[CH:13][C:12]=3[N+:23]([O-])=O)=[N:6][CH2:5]1.O.NN.C(OCC)(=O)C.CCCCCC>C(O)C.[C].[Pd]>[CH3:27][O:26][CH:3]([O:2][CH3:1])[CH:4]1[S:8][C:7]([C:9]2[NH:10][C:11]3[C:16]([CH:17]=2)=[CH:15][C:14]([O:18][CH2:19][CH2:20][O:21][CH3:22])=[CH:13][C:12]=3[NH2:23])=[N:6][CH2:5]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 8058HexaneHCID 8857Ethyl AcetateHCID 24654Hydrazine hydrate (1:1)2×HCID 574762212-[5-(dimethoxymethyl)-4,5-dihydro-1,3-thiazol-2-yl]-5-(2-methoxyethoxy)-7-nitro-1H-indole

Product 1

HCID 574762222-[5-(dimethoxymethyl)-4,5-dihydro-1,3-thiazol-2-yl]-5-(2-methoxyethoxy)-1H-indol-7-amineYield 29.2%

Reagents, catalysts & solvents 2

HCID 178418390HCID 178418390, compoundCatalystHCID 702EthanolSolvent

Conditions

Temperature
90 °C

Procedure

2-[5-(Dimethoxymethyl)-4,5-dihydro-1,3-thiazol-2-yl]-5-(2-methoxyethoxy)-7-nitro-1H-indole (100 mg) was suspended in ethanol, and 10% palladium-carbon (50% containing water, 50 mg) was added under nitrogen atmosphere. Hydrazine monohydrate (0.07 mL) was added to the mixture, and the mixture was stirred at 90° C. for 2 hr. Hydrazine monohydrate (0.07 mL) was added again, and the mixture was further stirred at 90° C. for 1 hr. The reaction solution was allowed to cool to room temperature, the catalyst was filtered off, and the filtrate was concentrated under reduced pressure. The obtained crude product was subjected to silica gel column chromatography (ethyl acetate:hexane=30:70-80:20) to give the title compound (27 mg, yield 29%) as a orange oil.

Workup

  1. stirringthe mixture was further stirred at 90° C. for 1 hr
  2. temperatureto cool to room temperature
  3. filtrationthe catalyst was filtered off
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe obtained crude product

Sources & evidence

ORD record
ord-8c5ccf7468774e6e9e20c9550fe8c6e5
Source dataset
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07652133B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes