Potassium Carbonate → HCID 67682424, compound

HRID 1431803Notes

Reaction equation

HRID 1431803 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[NH:51][C:50]([C@@H:52]2[CH2:56][C@H:55]([CH3:57])[CH2:54][N:53]2[C:58](=[O:68])[C@@H:59]([NH:63][C:64](=[O:67])[O:65][CH3:66])[CH:60]([CH3:62])[CH3:61])=[N:49][CH:48]=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]>[CH3:66][O:65][C:64]([NH:63][C@H:59]([C:58]([N:53]1[CH2:54][C@@H:55]([CH3:57])[CH2:56][C@H:52]1[C:50]1[NH:51][C:47]([C:32]2[CH:33]=[C:34]3[CH2:35][O:36][C:23]4[CH:22]=[C:21]5[C:26]([CH:27]=[CH:28][C:18]6[NH:17][C:16]([C@@H:6]7[CH2:5][C@H:4]([CH2:3][O:2][CH3:1])[CH2:8][N:7]7[C:9]([O:11][C:12]([CH3:13])([CH3:14])[CH3:15])=[O:10])=[N:20][C:19]=65)=[CH:25][C:24]=4[C:29]3=[CH:30][CH:31]=2)=[CH:48][N:49]=1)=[O:68])[CH:60]([CH3:62])[CH3:61])=[O:67]

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 67683076HCID 67683076, compoundHCID 178495650HCID 178495650, compound

Product 1

HCID 67682424HCID 67682424, compoundYield 32%

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 (438 mg, 0.72 mmol), methyl (S)-1-((2S,4S)-2-(5-bromo-1H-imidazol-2-yl)-4-methylpyrrolidin-1-yl)-3-methyl-1-oxobutan-2-ylcarbamate (276 mg, 0.72 mmol), tetrakis(triphenylphosphine) palladium(0) (41 mg, 0.04 mmol) and dichloro[1,1′-bis(diphenylphosphino) ferrocene]palladium(II) (52 mg, 0.07 mmol) in a mixture of 1,2-dimethoxyethane (8.6 mL) and dimethylformamide (1.5 mL) was added a solution of potassium carbonate (2M in water, 1.07 mL, 2.15 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 yield tert-butyl (2S,4S)-2-[9-(2-{(2S,4S)-1-[N-(methoxycarbonyl)-L-valyl]-4-methylpyrrolidin-2-yl}-1H-imidazol-5-yl)-3,11-dihydroisochromeno[4′,3′:6,7]naphtho[1,2-d]imidazol-2-yl]-4-(methoxymethyl)pyrrolidine-1-carboxylate (182 mg, 32%).

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

Sources & evidence

ORD record
ord-3529a4b4a36f46fc92efca282cd6b937
Source dataset
uspto-grants-2015_01
Patent number
US08940718B2

Reaction notes

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