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Sodium Carbonate → 4-[2-(4-Amino-furazan-3-yl)-1-ethyl-1H-imidazo[4,5-c]pyridin-7-yl]-benzoic Acid

HRID 1394192
Notes
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Reaction equation

HRID 1394192 reaction equation
Br[C:2]1[C:3]2[N:10]([CH2:11][CH3:12])[C:9]([C:13]3[C:14]([NH2:18])=[N:15][O:16][N:17]=3)=[N:8][C:4]=2[CH:5]=[N:6][CH:7]=1.[C:19]([C:22]1[CH:27]=[CH:26][C:25](B(O)O)=[CH:24][CH:23]=1)([OH:21])=[O:20].C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:18][C:14]1[C:13]([C:9]2[N:10]([CH2:11][CH3:12])[C:3]3[C:2]([C:25]4[CH:26]=[CH:27][C:22]([C:19]([OH:21])=[O:20])=[CH:23][CH:24]=4)=[CH:7][N:6]=[CH:5][C:4]=3[N:8]=2)=[N:17][O:16][N:15]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 3121834-Carboxyphenylboronic AcidHCID 443971924-(7-Bromo-1-ethyl-1H-imidazo[4,5-c]pyridin-2-yl)-1,2,5-oxadiazol-3-amine

Product 1

HCID 596818224-[2-(4-Amino-furazan-3-yl)-1-ethyl-1H-imidazo[4,5-c]pyridin-7-yl]-benzoic AcidYield 35%

Reagents, catalysts & solvents 2

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 312751,4-DioxaneSolvent

Procedure

To a solution of the product from Example 100 (1.5 g, 4.85 mmol) in 1,4-Dioxane (50 ml) was added 4-carboxybenzene boronic acid (1.20 g, 7.23 mmol), sodium carbonate (7 ml of a 2 M solution) and tetrakis(triphenylphosphine)palladium(0) (1.12 g, 0.97 mmol). The reaction mixture was heated to reflux with stirring for 18 hours and allowed to cool. The reaction mixture was filetered and washed with ether (5×, 100 ml) to afford the title compound as a yellow solid (0.594 g, 35%); MS (ES+) m/e 351 [M+H]+.

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux
  3. temperatureto cool
  4. washwashed with ether (5×, 100 ml)

Sources & evidence

ORD record
ord-4b3c29e99c8d49329d2075cb499b7b92
Source dataset
uspto-grants-2008_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07348339B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes