Cesium carbonate → HCID 66806547, compound

HRID 1057190Notes

Reaction equation

HRID 1057190 reaction equation
[OH:1][C:2]1[CH:3]=[C:4](/[C:8](/[CH2:38][CH3:39])=[C:9](\[C:25]2[CH:30]=[CH:29][C:28](/[CH:31]=[CH:32]/[C:33]([O:35][CH2:36][CH3:37])=[O:34])=[CH:27][CH:26]=2)/[C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[N:15]([CH:19]2[CH2:24][CH2:23][CH2:22][CH2:21][O:20]2)[N:14]=[CH:13]3)[CH:5]=[CH:6][CH:7]=1.C([O-])([O-])=O.[Cs+].[Cs+].I[C:47]1[CH:52]=[CH:51][CH:50]=[CH:49][N:48]=1.N1C=CC=CC=1CC(=O)C>CS(C)=O>[N:48]1[CH:49]=[CH:50][CH:51]=[CH:52][C:47]=1[O:1][C:2]1[CH:3]=[C:4](/[C:8](/[CH2:38][CH3:39])=[C:9](\[C:25]2[CH:26]=[CH:27][C:28](/[CH:31]=[CH:32]/[C:33]([O:35][CH2:36][CH3:37])=[O:34])=[CH:29][CH:30]=2)/[C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[N:15]([CH:19]2[CH2:24][CH2:23][CH2:22][CH2:21][O:20]2)[N:14]=[CH:13]3)[CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 10796Cesium carbonateHCID 959101-(Pyridin-2-yl)propan-2-oneHCID 2211262-IodopyridineHCID 66794676HCID 66794676, compound2×

Product 1

HCID 66806547HCID 66806547, compoundYield 64.4%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of (E)-ethyl 3-(4-((E)-2-(3-hydroxyphenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenyl)acrylate (300 mg, 0.57 mmol; Compound 346, Step 1), CuBr (3.6 mg, 0.025 mmol), Cs2CO3 (320 mg, 0.98 mmol), 2-iodopyridine (103 mg, 0.50 mmol), 1-(pyridin-2-yl)propan-2-one (15 mg, 0.11 mmol), and DMSO (1 mL) was degassed with three vacuum/N2 cycles, heated at 80° C. for 5 h, heated at 90° C. for 2 h, and then stirred at rt for 14 h. The reaction was diluted with EtOAc and filtered through Celite. The organic filtrate was washed with H2O (50 mL), washed with brine (40 mL), dried (MgSO4), filtered, concentrated, and purified by silica gel chromatography (10%-30% EtOAc in hexanes) to give 193 mg of (E)-ethyl 3-(4-((E)-2-(3-(pyridin-2-yloxy)phenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenyl)acrylate as a white foam. 1H NMR (400 MHz, DMSO-d6): δ 8.13 (dd, 1H), 8.11 (s, 1H), 7.69-7.75 (m, 2H), 7.64 (s, 1H), 7.52 (d, 1H), 7.44 (d, 2H), 7.30 (t, 1H), 7.23 (dd, 1H), 7.06-7.10 (m, 2H), 6.90-6.95 (m, 3H), 6.85-6.88 (m, 1H), 6.65 (d, 1H), 6.52 (d, 1H), 5.85 (d, 1H), 4.16 (q, 2H), 3.87-3.92 (m, 1H), 3.70-3.78 (m, 1H), 2.38-2.48 (m, 3H), 1.95-2.08 (m, 2H), 1.70-1.81 (m, 1H), 1.56-1.62 (m, 2H), 1.25 (t, 3H), 0.94 (t, 3H); LCMS: 600 (M+H)+.

Workup

  1. customwas degassed with three vacuum/N2 cycles
  2. temperatureheated at 90° C. for 2 h
  3. additionThe reaction was diluted with EtOAc
  4. filtrationfiltered through Celite
  5. washThe organic filtrate was washed with H2O (50 mL)
  6. washwashed with brine (40 mL)
  7. dry with materialdried (MgSO4)
  8. filtrationfiltered
  9. concentrationconcentrated
  10. custompurified by silica gel chromatography (10%-30% EtOAc in hexanes)

Sources & evidence

ORD record
ord-56d81f3c654945c8942cf01571f92089
Source dataset
uspto-grants-2016_07
Patent number
US09399646B2

Reaction notes

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