Tetrabutylammonium Fluoride → 1-[3-tert-butyl-1-(4-chloro-3-hydroxyphenyl)pyrazol-5-yl]-3-[(1S,4R)-4-[(3-piperidin-1-yl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)oxy]-1,2,3,4-tetrahydronaphthalen-1-yl]urea

HRID 711154Notes

Reaction equation

HRID 711154 reaction equation
[C:1]([C:5]1[CH:6]=[C:7]([NH:28][C:29]([NH:31][C@@H:32]2[C:41]3[C:36](=[CH:37][CH:38]=[CH:39][CH:40]=3)[C@H:35]([O:42][C:43]3[CH:44]=[CH:45][C:46]4[N:47]([C:49]([N:52]5[CH2:57][CH2:56][CH2:55][CH2:54][CH2:53]5)=[N:50][N:51]=4)[CH:48]=3)[CH2:34][CH2:33]2)=[O:30])[N:8]([C:10]2[CH:15]=[CH:14][C:13]([Cl:16])=[C:12]([O:17][Si](C(C)C)(C(C)C)C(C)C)[CH:11]=2)[N:9]=1)([CH3:4])([CH3:3])[CH3:2].CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1>[C:1]([C:5]1[CH:6]=[C:7]([NH:28][C:29]([NH:31][C@@H:32]2[C:41]3[C:36](=[CH:37][CH:38]=[CH:39][CH:40]=3)[C@H:35]([O:42][C:43]3[CH:44]=[CH:45][C:46]4[N:47]([C:49]([N:52]5[CH2:57][CH2:56][CH2:55][CH2:54][CH2:53]5)=[N:50][N:51]=4)[CH:48]=3)[CH2:34][CH2:33]2)=[O:30])[N:8]([C:10]2[CH:15]=[CH:14][C:13]([Cl:16])=[C:12]([OH:17])[CH:11]=2)[N:9]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 123624987HCID 123624987, compound

Product 1

HCID 863449851-[3-tert-butyl-1-(4-chloro-3-hydroxyphenyl)pyrazol-5-yl]-3-[(1S,4R)-4-[(3-piperidin-1-yl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)oxy]-1,2,3,4-tetrahydronaphthalen-1-yl]ureaYield 78.9%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of Intermediate 48a (198 mg, 0.24 mmol) in THF (4 mL) was added TBAF (1M in THF, 0.29 mL, 0.29 mmol) and the red solution was stirred at RT for 15 min. The solution was concentrated in vacuo, suspended in water (10 mL) and extracted with EtOAc (2×10 mL). The combined organics were washed with brine (10 mL), dried (Na2SO4), filtered and concentrated in vacuo. FCC, using 4-8% MeOH in DCM, gave the title compound (124 mg, 78%). LCMS (Method 5): Rt 4.50 min, m/z 655 [MH+]. 1H NMR (400 MHz, d6-DMSO): 1.27 (9H, s), 1.60-1.63 (2H, m), 1.70-1.75 (4H, m), 1.84-1.96 (2H, m), 1.99-2.13 (2H, m), 3.14 (4H, t, J=5.2 Hz), 4.82 (1H, m), 5.55 (1H, t, J 4.4), 6.33 (1H, s), 6.94 (1H, dd, J=8.5, 2.4 Hz), 7.08 (1H, d, J=8.5 Hz), 7.12 (1H, d, J=2.4 Hz), 7.16 (1H, dd, J=9.8, 2.2 Hz), 7.27-7.39 (4H, m), 7.43 (1H, d, J=8.5 Hz), 7.60-7.63 (2H, m), 8.13 (1H, s), 10.59 (1H, br s).

Workup

  1. concentrationThe solution was concentrated in vacuo
  2. extractionextracted with EtOAc (2×10 mL)
  3. washThe combined organics were washed with brine (10 mL)
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-fcf55b62e98d4c1a9cf71f734947ae31
Source dataset
uspto-grants-2015_11
Patent number
US09181242B2

Reaction notes

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