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Potassium Carbonate → HCID 178438799, compound

HRID 1751642
Notes
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Reaction equation

HRID 1751642 reaction equation
[CH3:1][CH:2]([CH3:39])[C@H:3]([NH:34][C:35](=[O:38])[O:36][CH3:37])[C:4](=[O:33])[N:5]1[CH2:9][CH2:8][CH2:7][C@H:6]1[C:10]1[NH:11][C:12]([C:15]2[CH:20]=[CH:19][C:18](B3OC(C)(C)C(C)(C)O3)=[C:17]([C:30]#[C:31][CH3:32])[CH:16]=2)=[CH:13][N:14]=1.Br[C:41]1[CH:42]=[C:43]2[C:66](=[CH:67][CH:68]=1)[C:47]1[NH:48][C:49]([C@@H:51]3[CH2:55][C@H:54]([CH2:56][O:57][CH3:58])[CH2:53][N:52]3[C:59]([O:61][C:62]([CH3:65])([CH3:64])[CH3:63])=[O:60])=[N:50][C:46]=1[CH:45]=[CH:44]2.C([O-])([O-])=O.[K+].[K+]>COCCOC.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.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]>[CH3:37][O:36][C:35]([NH:34][C@@H:3]([CH:2]([CH3:39])[CH3:1])[C:4]([N:5]1[CH2:9][CH2:8][CH2:7][C@H:6]1[C:10]1[NH:11][C:12]([C:15]2[CH:20]=[CH:19][C:18]([C:42]3[CH:41]=[C:68]4[C:45](=[CH:44][CH:43]=3)[C:46]3[NH:50][C:49]([C@@H:51]5[CH2:55][C@H:54]([CH2:56][O:57][CH3:58])[CH2:53][N:52]5[C:59]([O:61][C:62]([CH3:63])([CH3:64])[CH3:65])=[O:60])=[N:48][C:47]=3[CH:66]=[CH:67]4)=[C:17]([C:30]#[C:31][CH3:32])[CH:16]=2)=[CH:13][N:14]=1)=[O:33])=[O:38]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 86708797Methyl (S)-3-methyl-1-oxo-1-((S)-2-(5-(3-(prop-1-ynyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-yl)pyrrolidin-1-yl)butan-2-ylcarbamateHCID 178495670HCID 178495670, compound

Product 1

HCID 178438799HCID 178438799, compoundYield 30%

Reagents, catalysts & solvents 3

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
85 °C

Procedure

Methyl (S)-3-methyl-1-oxo-1-((S)-2-(5-(3-(prop-1-ynyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-yl)pyrrolidin-1-yl)butan-2-ylcarbamate (153 mg, 0.28 mmol), (2S,4S)-tert-butyl 2-(7-bromo-1H-naphtho[1,2-d]imidazol-2-yl)-4-(methoxymethyl)pyrrolidine-1-carboxylate (158 mg, 0.34 mmol), Pd(PPh3)4 (32 mg, 0.028 mmol), Pd(dppf)2Cl2 (20 mg, 0.028 mmol), and K2CO3 (2M in H2O, 0.46 mL, 0.92 mmoL) were combined in DME (4 mL). The mixture was degassed with bubbling N2 for 10 min the heated to 85° C. for 16 h. After cooling, the reaction mixture was diluted with EtOAc, and washed successively with saturated aqueous NaHCO3 and brine. The organics were dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (0% to 30% MeOH/EtOAc) to afford (2S,4S)-tert-butyl 2-(7-(4-(2-((S)-1-((S)-2-(methoxycarbonylamino)-3-methylbutanoyl)pyrrolidin-2-yl)-1H-imidazol-5-yl)-2-(prop-1-ynyl)phenyl)-1H-naphtho[1,2-d]imidazol-2-yl)-4-(methoxymethyl)pyrrolidine-1-carboxylate (66 mg, 30%).

Workup

  1. customThe mixture was degassed with bubbling N2 for 10 min the
  2. temperatureAfter cooling
  3. additionthe reaction mixture was diluted with EtOAc
  4. washwashed successively with saturated aqueous NaHCO3 and brine
  5. dry with materialThe organics were dried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude residue was purified by silica column chromatography (0% to 30% MeOH/EtOAc)

Sources & evidence

ORD record
ord-3406f81bf54d4390ab2b310f257e455e
Source dataset
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09156823B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes