Water → HCID 67521084, compound

HRID 1926229Notes

Reaction equation

HRID 1926229 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]2[CH:18]=[C:17]([C:19]3[CH:20]=[N:21][C:22]([NH2:34])=[C:23](B4OC(C)(C)C(C)(C)O4)[CH:24]=3)[CH:16]=[N:15]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:35][C:36]1[C:45]2[C:40](=[CH:41][CH:42]=[CH:43][CH:44]=2)[CH:39]=[N:38][C:37]=1OS(C(F)(F)F)(=O)=O.O1CCOCC1.C([O-])([O-])=O.[Cs+].[Cs+].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>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]2[CH:18]=[C:17]([C:19]3[CH:20]=[N:21][C:22]([NH2:34])=[C:23]([C:37]4[N:38]=[CH:39][C:40]5[C:45]([C:36]=4[CH3:35])=[CH:44][CH:43]=[CH:42][CH:41]=5)[CH:24]=3)[CH:16]=[N:15]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 5

HCID 962WaterHCID 10796Cesium carbonateHCID 312751,4-DioxaneHCID 534879604-[4-[6-Amino-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)pyridin-3-yl]pyrazol-1-yl]piperidine-1-carboxylic acid tert-butyl esterHCID 86633133HCID 86633133, compound

Product 1

HCID 67521084HCID 67521084, compound

Reagents, catalysts & solvents 1

HCID 178418397HCID 178418397, compoundCatalyst

Conditions

Temperature
100 °C

Procedure

To a solution of 4-{4-[6-Amino-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridin-3-yl]-pyrazol-1-yl}-piperidine-1-carboxylic acid tert-butyl ester (BB3) (86.3 mg, 0.184 mmol), trifluoromethanesulfonic acid 4-methylisoquinolin-3-yl ester (54.8 mg, 0.188 mmol), and Pd(PPh3)4 (14 mg, 0.012 mmol) in 1,4-dioxane (2.8 mL, 36 mmol) in a sealable microwave tube was added a solution of Cs2CO3 (118 mg, 0.361 mmol) in H2O (0.80 mL, 44 mmol). The tube was sealed, evacuated and refilled with nitrogen (3×), and heated in the microwave reactor to 100° C. for 30 min. The reaction mixture was diluted with DCM, washed with water and brine, and dried over MgSO4. The crude material was chromatographed on silica gel [20 g/70 mL prepacked cartridge, eluting with DCM→1% MeOH in DCM→2% MeOH in DCM→2.5% MeOH in DCM→3% MeOH in DCM→3.5% MeOH in DCM→4% MeOH in DCM]. Fractions containing the title compound were combined and dried in vacuo, giving the title compound as a glassy solid. 1H NMR (400 MHz, CDCl3): δ=9.22 (s, 1H), 8.30 (d, J=2.4 Hz, 1H), 8.08 (dd, J=0.8, 8.6 Hz, 1H), 8.03 (d, J=8.0 Hz, 1H), 7.81 (ddd, J=1.2, 6.8, 8.3 Hz, 1H), 7.71 (d, J=0.8 Hz, 1H), 7.68 (ddd, J=0.8, 7.0, 8.0 Hz, 1H), 7.62 (s, 1H), 7.57 (d, J=2.4 Hz, 1H), 4.85 (brs, 2H), 4.42-4.13 (m, 3H), 2.90 (brt, J=11.2 Hz, 2H), 2.62 (s, 3H), 2.15 (brdd, J=2.0, 12.4 Hz, 2H), 1.95 (dq, J=4.0, 12.0 Hz, 2H), 1.48 (s, 9H). MS(ES+): m/z=485.14 (100) [MH+], 429.12 (66) [MH+-isobutene]. HPLC: tR=2.62 min (polar—5 min, ZQ3).

Workup

  1. customThe tube was sealed
  2. customevacuated
  3. additionrefilled with nitrogen (3×)
  4. additionThe reaction mixture was diluted with DCM
  5. washwashed with water and brine
  6. dry with materialdried over MgSO4
  7. customThe crude material was chromatographed on silica gel [20 g/70 mL prepacked cartridge, eluting with DCM→1% MeOH in DCM→2% MeOH in DCM→2.5% MeOH in DCM→3% MeOH in DCM→3.5% MeOH in DCM→4% MeOH in DCM]
  8. additionFractions containing the title compound
  9. customdried in vacuo

Sources & evidence

ORD record
ord-8083e17391c94be993e83b3c1eb94c55
Source dataset
uspto-grants-2012_05
Patent number
US08178668B2

Reaction notes

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