Ethyl Acetate → HCID 68350709, compound

HRID 1853993Notes

Reaction equation

HRID 1853993 reaction equation
Br[C:2]1[CH:3]=[C:4]([C:14]([NH:16][CH2:17][C:18]2[C:19](=[O:26])[NH:20][C:21]([CH3:25])=[CH:22][C:23]=2[CH3:24])=[O:15])[C:5]2[CH:10]=[N:9][N:8]([CH:11]([CH3:13])[CH3:12])[C:6]=2[N:7]=1.[CH3:27][N:28]1[CH2:33][CH2:32][N:31]([C:34]2[CH:39]=[CH:38][C:37](B3OC(C)(C)C(C)(C)O3)=[CH:36][CH:35]=2)[CH2:30][CH2:29]1.C([O-])([O-])=O.[Na+].[Na+].CCOC(C)=O>O1CCOCC1.O.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>[CH3:24][C:23]1[CH:22]=[C:21]([CH3:25])[NH:20][C:19](=[O:26])[C:18]=1[CH2:17][NH:16][C:14]([C:4]1[C:5]2[CH:10]=[N:9][N:8]([CH:11]([CH3:13])[CH3:12])[C:6]=2[N:7]=[C:2]([C:37]2[CH:36]=[CH:35][C:34]([N:31]3[CH2:32][CH2:33][N:28]([CH3:27])[CH2:29][CH2:30]3)=[CH:39][CH:38]=2)[CH:3]=1)=[O:15]

Participants

8

Reactant 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 179989051-Methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazineHCID 86703409HCID 86703409, compound

Product 1

HCID 68350709HCID 68350709, compoundYield 57%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A solution of 6-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide (1 equiv), 1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine (1.2 equiv.) and Pd(PPh3)4 (0.1 equiv.) in 1,4-dioxane was purged with argon for 10 min. Then, 2 M Na2CO3 (3.6 equiv.) in water was added to it and again argon was purged through it for 10 min. The reaction mixture was stirred at 100° C. for 1 h. After completion of the reaction, water was added to it and extraction was carried out using EtOAc. The combined organic layers were washed with water, dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford crude material which was purified by column chromatography to give the desired compound (57%). LCMS: 514.20 (M+1)+; HPLC: 99.74% (@ 254 nm), (Rt; 5.183); 1H NMR (CDCl3, 400 MHz) δ 11.88 (bs, 1H), 8.30 (s, 1H), 8.16 (t, 1H), 8.08 (d, 2H, J=8.8 Hz), 7.91 (s, 1H), 6.97 (d, 2H, J=8.8 Hz), 5.94 (s, 1H), 5.43-5.36 (m, 1H), 4.66 (d, 2H, J=5.6 Hz), 3.30 (bs, 4H), 2.58 (bs, 4H), 2.41 (s, 3H), 2.36 (s, 3H), 2.19 (s, 3H), 1.60 (d, 6H, J=6.4 Hz).

Workup

  1. customwas purged through it for 10 min
  2. customAfter completion of the reaction, water
  3. additionwas added to it and extraction
  4. washThe combined organic layers were washed with water
  5. dry with materialdried over anhydrous Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customto afford crude material which
  9. customwas purified by column chromatography

Sources & evidence

ORD record
ord-7dc5574ced78463885d5c7414983c957
Source dataset
uspto-grants-2015_02
Patent number
US08962620B2

Reaction notes

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