Potassium Carbonate → HCID 178495652, compound

HRID 1431807Notes

Reaction equation

HRID 1431807 reaction equation
[CH3:1][O:2][CH2:3][C@@H:4]1[CH2:8][N:7]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[C@H:6]([C:16]2[NH:20][C:19]3[C:21]4[C:26]([CH:27]=[CH:28][C:18]=3[N:17]=2)=[CH:25][C:24]2[C:29]3[C:34]([CH2:35][O:36][C:23]=2[CH:22]=4)=[CH:33][C:32](B2OC(C)(C)C(C)(C)O2)=[CH:31][CH:30]=3)[CH2:5]1.Br[C:47]1[CH:48]=[CH:49][C:50]2[N:54]=[C:53]([C@@H:55]3[CH2:59][CH2:58][CH2:57][N:56]3[C:60](=[O:70])[C@@H:61]([NH:65][C:66](=[O:69])[O:67][CH3:68])[CH:62]([CH3:64])[CH3:63])[NH:52][C:51]=2[CH:71]=1.C(=O)([O-])[O-].[K+].[K+]>COCCOC.CN(C)C=O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[C:12]([O:11][C:9]([N:7]1[CH2:8][C@@H:4]([CH2:3][O:2][CH3:1])[CH2:5][C@H:6]1[C:16]1[NH:20][C:19]2[C:21]3[C:26]([CH:27]=[CH:28][C:18]=2[N:17]=1)=[CH:25][C:24]1[C:29]2[C:34]([CH2:35][O:36][C:23]=1[CH:22]=3)=[CH:33][C:32]([C:47]1[CH:48]=[CH:49][C:50]3[N:54]=[C:53]([C@@H:55]4[CH2:59][CH2:58][CH2:57][N:56]4[C:60](=[O:70])[C@@H:61]([NH:65][C:66]([O:67][CH3:68])=[O:69])[CH:62]([CH3:63])[CH3:64])[NH:52][C:51]=3[CH:71]=1)=[CH:31][CH:30]=2)=[O:10])([CH3:15])([CH3:13])[CH3:14]

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 59611353Methyl N-[(1S)-1-[[(2S)-2-(6-bromo-1H-benzimidazol-2-yl)-1-pyrrolidinyl]carbonyl]-2-methylpropyl]carbamateHCID 178495650HCID 178495650, compound

Product 1

HCID 178495652HCID 178495652, compound

Reagents, catalysts & solvents 4

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 6228DimethylformamideSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
85 °C

Procedure

To a solution of (2S,4S)-tert-butyl 4-(methoxymethyl)-2-(9-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl)pyrrolidine-1-carboxylate (400 mg, 0.85 mmol), methyl (S)-1-((S)-2-(6-bromo-1H-benzo[d]imidazol-2-yl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-ylcarbamate (360 mg, 0.85 mmol), tetrakis(triphenylphosphine) palladium(0) (38 mg, 0.03 mmol) and dichloro[1,1′-bis(diphenylphosphino) ferrocene]palladium(II) (48 mg, 0.07 mmol) in a mixture of 1,2-dimethoxyethane (8.0 mL) and dimethylformamide (1.4 mL) was added a solution of potassium carbonate (2M in water, 0.98 mL, 1.96 mmol). The resulting mixture was degassed and then heated to 85° C. under argon for 18 hours. After cooling to room temperature, the reaction was diluted with ethyl acetate. The organics were washed with water and brine, dried (Na2SO4), and concentrated. The crude residue was purified by flash chromatography to (2S,4S)-tert-butyl 2-(9-(2-((S)-1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)pyrrolidin-2-yl)-1H-benzo[d]imidazol-6-yl)-1,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl)-4-(methoxymethyl)pyrrolidine-1-carboxylate (156 mg, 29%).

Workup

  1. customThe resulting mixture was degassed
  2. temperatureAfter cooling to room temperature
  3. additionthe reaction was diluted with ethyl acetate
  4. washThe organics were washed with water and brine
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated
  7. customThe crude residue was purified by flash chromatography to (2S,4S)-tert-butyl 2-(9-(2-((S)-1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)pyrrolidin-2-yl)-1H-benzo[d]imidazol-6-yl)-1,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl)-4-(methoxymethyl)pyrrolidine-1-carboxylate (156 mg, 29%)

Sources & evidence

ORD record
ord-abe2c9fcb6ec45829b77010d8e559c02
Source dataset
uspto-grants-2015_01
Patent number
US08940718B2

Reaction notes

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