Water → tert-Butyl 3-{3-[1-(4-amino-3-vinyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-2-methoxy-6-methylphenyl}azetidine-1-carboxylate

HRID 1499785Notes

Reaction equation

HRID 1499785 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[C:15]([O:33][CH3:34])=[C:16]([CH:22]4[CH2:25][N:24]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:23]4)[C:17]([CH3:21])=[C:18]([Cl:20])[CH:19]=3)[CH3:13])[N:9]=[C:10](Br)[C:3]=12.[CH3:35][C:36]1(C)C(C)(C)OB(C=C)O1.C(=O)([O-])[O-].[Na+].[Na+].O>CN(C)C=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>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[C:15]([O:33][CH3:34])=[C:16]([CH:22]4[CH2:25][N:24]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:23]4)[C:17]([CH3:21])=[C:18]([Cl:20])[CH:19]=3)[CH3:13])[N:9]=[C:10]([CH:35]=[CH2:36])[C:3]=12

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 52330122-Ethenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 86677708tert-Butyl 3-{3-[1-(4-amino-3-bromo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-2-methoxy-6-methylphenyl}azetidine-1-carboxylate2×

Product 1

HCID 86677711tert-Butyl 3-{3-[1-(4-amino-3-vinyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-2-methoxy-6-methylphenyl}azetidine-1-carboxylateYield 75.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of tert-butyl 3-{3-[1-(4-amino-3-bromo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-2-methoxy-6-methylphenyl}azetidine-1-carboxylate (1.1 g, 2.0 mmol, racemic intermediate from Example 125, Step 1) in N,N-dimethylformamide (10 mL) was added tetrakis(triphenylphosphine)palladium(0) (230 mg, 0.20 mmol) and 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (0.68 mL, 4.0 mmol). 2.0 M sodium carbonate in water (5.0 mL, 1.0 mmol) was added under N2 and the mixture heated at 100° C. for 3 h then stirred at room temperature overnight. The reaction mixture was filtered through Celite, and washed with EtOAc. The filtrates were washed with water and brine, dried (MgSO4), filtered, and concentrated. The crude material was purified on silica gel (eluted with 40-100% ethyl acetate in hexanes) to give 0.75 g (75%) of the desired product. LCMS calculated for C25H32ClN6O3 (M+H)+: m/z=499.2; Found: 499.0 (M+H); 1H NMR (300 MHz, CDCl3): δ 8.30 (s, 1H), 7.50-7.40 (m, 1H), 6.99 (dd, J=17.7, 11.3 Hz, 1H), 6.44 (q, J=7.0 Hz, 1H), 5.95 (dd, J=17.7, 1.3 Hz, 1H), 5.83 (br s, 1H), 5.65 (dd, J=11.3, 1.3 Hz, 1H), 4.39-3.96 (m, 4H), 3.63 (d, J=6.7 Hz, 3H), 2.99-2.78 (m, 1H), 2.22 (s, 4H), 1.84 (d, J=7.1 Hz, 3H), 1.43 (s, 9H).

Workup

  1. filtrationThe reaction mixture was filtered through Celite
  2. washwashed with EtOAc
  3. washThe filtrates were washed with water and brine
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude material was purified on silica gel (eluted with 40-100% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-dd9c20f5eea44c039d9e9ccaafb03917
Source dataset
uspto-grants-2015_12
Patent number
US09199982B2

Reaction notes

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