Triphenylphosphine → 1-cyclopropyl-3-((1-(4-fluorobutyl)-1H-imidazo[4,5-b]pyridin-2-yl)methyl)-1H-imidazo[4,5-c]pyridin-2(3H)-one

HRID 632865Notes

Reaction equation

HRID 632865 reaction equation
[F:1][CH2:2][CH2:3][CH2:4][CH2:5][N:6]1[C:14]2[C:9](=[N:10][CH:11]=[CH:12][CH:13]=2)[N:8]=[C:7]1[CH2:15]O.[CH:17]1([N:20]2[C:28]3[CH:27]=[CH:26][N:25]=[CH:24][C:23]=3[NH:22][C:21]2=[O:29])[CH2:19][CH2:18]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(/C(OC(C)C)=O)=N\C(OC(C)C)=O>C1COCC1>[CH:17]1([N:20]2[C:28]3[CH:27]=[CH:26][N:25]=[CH:24][C:23]=3[N:22]([CH2:15][C:7]3[N:6]([CH2:5][CH2:4][CH2:3][CH2:2][F:1])[C:14]4[C:9]([N:8]=3)=[N:10][CH:11]=[CH:12][CH:13]=4)[C:21]2=[O:29])[CH2:19][CH2:18]1

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 223493611-Cyclopropyl-1,3-dihydroimidazo[4,5-c]pyridine-2-oneHCID 67991782(1-(4-fluorobutyl)-1H-imidazo[4,5-b]pyridin-2-yl)methanol

Product 1

HCID 679755321-cyclopropyl-3-((1-(4-fluorobutyl)-1H-imidazo[4,5-b]pyridin-2-yl)methyl)-1H-imidazo[4,5-c]pyridin-2(3H)-oneYield 63.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a suspension of (1-(4-fluorobutyl)-1H-imidazo[4,5-b]pyridin-2-yl)methanol 42-5 (958 mg, 4.3 mmol), 1-cyclopropyl-1H-imidazo[4,5-c]pyridin-2(3H)-one 10-d (950 mg, 5.15 mmol) and triphenylphosphine (1350 mg, 5.15 mmol) in 30 ml dry THF was added (E)-diisopropyl diazene-1,2-dicarboxylate (1.26 ml, 6.43 mmol) at room temperature. The reaction mixture was stirred at room temperature for 16 hours. The precipitate was filtered off and washed with some diethyl ether to obtain the title product as a white powder (1036 mg, 63%).

Workup

  1. filtrationThe precipitate was filtered off
  2. washwashed with some diethyl ether

Sources & evidence

ORD record
ord-0cc761e3b17c444ba89441463da045bd
Source dataset
uspto-grants-2016_04
Patent number
US09321767B2

Reaction notes

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