Potassium Phosphate, Tribasic → tert-butyl 4-(3-(2-(2,4-difluorophenoxy)-5-nitrophenyl)-7-methoxy-1-methyl-1H-pyrrolo[2,3-c]pyridin-5-yl)-5,6-dihydropyridine-1 (2H)-carboxylate

HRID 633601Notes

Reaction equation

HRID 633601 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:12]([C:13]3[CH:18]=[C:17]([N+:19]([O-:21])=[O:20])[CH:16]=[CH:15][C:14]=3[O:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[CH:25][C:24]=3[F:30])=[CH:11][N:10]([CH3:31])[C:5]2=[C:6]([O:8][CH3:9])[N:7]=1.CC1(C)C(C)(C)OB([C:40]2[CH2:45][CH2:44][N:43]([C:46]([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])=[O:47])[CH2:42][CH:41]=2)O1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCCC1.O>[F:30][C:24]1[CH:25]=[C:26]([F:29])[CH:27]=[CH:28][C:23]=1[O:22][C:14]1[CH:15]=[CH:16][C:17]([N+:19]([O-:21])=[O:20])=[CH:18][C:13]=1[C:12]1[C:4]2[C:5](=[C:6]([O:8][CH3:9])[N:7]=[C:2]([C:40]3[CH2:45][CH2:44][N:43]([C:46]([O:48][C:49]([CH3:52])([CH3:51])[CH3:50])=[O:47])[CH2:42][CH:41]=3)[CH:3]=2)[N:10]([CH3:31])[CH:11]=1

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 904161975-bromo-3-(2-(2,4-difluorophenoxy)-5-nitrophenyl)-7-methoxy-1-methyl-1H-pyrrolo[2,3-c]pyridine

Product 1

HCID 90416432tert-butyl 4-(3-(2-(2,4-difluorophenoxy)-5-nitrophenyl)-7-methoxy-1-methyl-1H-pyrrolo[2,3-c]pyridin-5-yl)-5,6-dihydropyridine-1 (2H)-carboxylateYield 73.8%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of Example 182B (238 mg, 0.485 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (150 mg, 0.485 mmol), phenylallylchloro[1,3-bis(diisopropylphenyl)-2-imidazol-2-ylidene]palladium(II) (31.4 mg, 0.048 mmol) and potassium phosphate (309 mg, 1.454 mmol) in 9 mL tetrahydrofuran and 3 mL water was heated at 60° C. for 3 hours. Water was added, extracted with ethyl acetate (3×), washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated and the residue was purified by column chromatography on silica gel with a gradient of 0-50% ethyl acetate in heptanes to give the title compound (212 mg, 0.358 mmol, 73.8% yield) as a yellow solid.

Workup

  1. extractionextracted with ethyl acetate (3×)
  2. washwashed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated
  6. customthe residue was purified by column chromatography on silica gel with a gradient of 0-50% ethyl acetate in heptanes

Sources & evidence

ORD record
ord-e0e5a86c3168495283753f6cf9f21e72
Source dataset
uspto-grants-2016_04
Patent number
US09321764B2

Reaction notes

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