Potassium Phosphate, Tribasic → HCID 68328656, compound

HRID 634233Notes

Reaction equation

HRID 634233 reaction equation
[C:1]([NH:5][C:6]1[O:7][C:8]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[N:16]([S:20]([C:23]2[CH:29]=[CH:28][C:26]([CH3:27])=[CH:25][CH:24]=2)(=[O:22])=[O:21])[CH:15]=[C:14]3B2OC(C)(C)C(C)(C)O2)=[N:9][N:10]=1)([CH3:4])([CH3:3])[CH3:2].Cl[C:40]1[N:45]=[C:44]([CH:46]2[CH2:48][CH2:47]2)[C:43]([F:49])=[CH:42][N:41]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>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].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1>[C:1]([NH:5][C:6]1[O:7][C:8]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[N:16]([S:20]([C:23]2[CH:29]=[CH:28][C:26]([CH3:27])=[CH:25][CH:24]=2)(=[O:22])=[O:21])[CH:15]=[C:14]3[C:40]2[N:45]=[C:44]([CH:46]3[CH2:48][CH2:47]3)[C:43]([F:49])=[CH:42][N:41]=2)=[N:9][N:10]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 68328226HCID 68328226, compoundHCID 772310692-chloro-4-cyclopropyl-5-fluoroPyrimidine

Product 1

HCID 68328656HCID 68328656, compoundYield 76.4%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylCatalyst

Conditions

Temperature
130 °C

Procedure

To a 5 mL glass microwave tube containing N-tert-butyl-5-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indol-5-yl)-1,3,4-oxadiazol-2-amine (166 mg, 0.309 mmol) was added 2-chloro-4-cyclopropyl-5-fluoropyrimidine (69.4 mg, 0.402 mmol), potassium phosphate (197 mg, 0.928 mmol), dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (8.9 mg, 0.019 mmol), and Pd2(dba)3 (8.5 mg, 9.28 μmol). The tube was purged with argon, the solids were treated with dioxane (3 mL) and Water (0.3 mL), the tube was sealed, and the contents were heated in an Initiator microwave reactor (Personal Chemistry, Biotage AB, Inc., Upssala, Sweden) at 130° C. for 30 min. The mixture was treated with H2O and extracted with EtOAc. The organic layer was washed with brine, dried over MgSO4, filtered and concentrated. The crude material was purified by flash chromatography (eluting with 5-60% EtOAc in Hex) affording N-tert-butyl-5-(3-(4-cyclopropyl-5-fluoropyrimidin-2-yl)-1-tosyl-1H-indol-5-yl)-1,3,4-oxadiazol-2-amine (129 mg, 76%) as a light yellow viscous oil. MS (ESI, pos. ion) m/z: 547.1 (M+1).

Workup

  1. customThe tube was purged with argon
  2. additionthe solids were treated with dioxane (3 mL) and Water (0.3 mL)
  3. customthe tube was sealed
  4. additionThe mixture was treated with H2O
  5. extractionextracted with EtOAc
  6. washThe organic layer was washed with brine
  7. dry with materialdried over MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe crude material was purified by flash chromatography (eluting with 5-60% EtOAc in Hex)

Sources & evidence

ORD record
ord-223bb0c07b54402da046e3e6967b2c81
Source dataset
uspto-grants-2016_04
Patent number
US09321756B2

Reaction notes

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