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Cesium carbonate → HCID 86731737, compound

HRID 1504868
Notes
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Reaction equation

HRID 1504868 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C@@H:11]2[CH2:16][CH2:15][CH2:14][CH2:13][C@@H:12]2[NH:17][C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])[CH:5]=[N:6][C:7]=1[C:8]#[N:9].[NH2:25][C:26]1[N:31]=[C:30]([CH3:32])[C:29]([C:33]#[N:34])=[CH:28][CH:27]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:8]([C:7]1[N:6]=[CH:5][C:4]([NH:10][C@@H:11]2[CH2:16][CH2:15][CH2:14][CH2:13][C@@H:12]2[NH:17][C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[CH:3][C:2]=1[NH:25][C:26]1[CH:27]=[CH:28][C:29]([C:33]#[N:34])=[C:30]([CH3:32])[N:31]=1)#[N:9]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 10796Cesium carbonateHCID 27946626-Amino-2-methylpyridine-3-carbonitrileHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 86716545tert-butyl (1S,2R)-2-(5-bromo-6-cyanopyridin-3-ylamino)cyclohexylcarbamate

Product 1

HCID 86731737HCID 86731737, compound

Reagents, catalysts & solvents

1
HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Conditions

Temperature
100 °C

Procedure

To a flask containing tert-butyl {(1S,2R)-2-[(5-bromo-6-cyanopyridin-3-yl)amino]cyclohexyl}carbamate (PrepEx 1.1) (120 mg, 0.30 mmol), 6-amino-2-methylpyridine-3-carbonitrile (40 mg, 0.30 mmol), 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl (29 mg, 0.061 mmol), Pd2(dba)3 (28 mg, 0.031 mmol) and cesium carbonate (198 mg, 0.609 mmol) was added degassed dioxane (3 mL). The reaction mixture was heated to 100° C. overnight. The reaction mixture was cooled to room temperature, diluted with ethyl acetate and water, and the organic layer was separated, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. Purification by chromatography on silica gel (0-40% ethyl acetate/hexanes, linear gradient) afforded tert-butyl [(1S,2R)-2-({6-cyano-5-[(5-cyano-6-methylpyridin-2-yl)amino]pyridin-3-yl}amino)cyclohexyl]carbamate. MS ESI calc'd for C24H30N7O2 [M+H]+ 448. found 448. 1H NMR (500 MHz, DMSO-d6) δ 9.62 (s, 1H), 7.92-7.86 (m, 2H), 7.26 (s, 1H), 6.81 (d, J=8.8 Hz, 1H), 6.64 (d, J=8.5 Hz, 1H), 6.56 (d, J=7.7 Hz, 1), 3.75-3.64 (m, 2H), 2.47 (s, 3H), 1.75-1.42 (m, 8H), 1.26 (s, 9H).

Workup

  1. additionwas added
  2. customdegassed dioxane (3 mL)
  3. temperatureThe reaction mixture was cooled to room temperature
  4. additiondiluted with ethyl acetate and water
  5. customthe organic layer was separated
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customPurification by chromatography on silica gel (0-40% ethyl acetate/hexanes, linear gradient)

Sources & evidence

ORD record
ord-9e5760f3c6494ffb9e5796e727f82a97
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09216173B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes