Sodium Carbonate → Tert-butyl 4-(5-{3-[3-({[(2,2,2-trifluoroethyl)amino]carbonyl}amino)phenyl]imidazo[1,2-b]pyridazin-7-yl}pyridin-2-yl)piperazine-1-carboxylate

HRID 407022Notes

Reaction equation

HRID 407022 reaction equation
CC1(C)C(C)(C)OB([C:9]2[CH:10]=[CH:11][C:12]([N:15]3[CH2:20][CH2:19][N:18]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:17][CH2:16]3)=[N:13][CH:14]=2)O1.Cl[C:30]1[CH:35]=[N:34][N:33]2[C:36]([C:39]3[CH:40]=[C:41]([NH:45][C:46]([NH:48][CH2:49][C:50]([F:53])([F:52])[F:51])=[O:47])[CH:42]=[CH:43][CH:44]=3)=[CH:37][N:38]=[C:32]2[CH:31]=1.C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.O.C(OCC)(=O)C.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>[F:53][C:50]([F:51])([F:52])[CH2:49][NH:48][C:46]([NH:45][C:41]1[CH:40]=[C:39]([C:36]2[N:33]3[N:34]=[CH:35][C:30]([C:9]4[CH:10]=[CH:11][C:12]([N:15]5[CH2:16][CH2:17][N:18]([C:21]([O:23][C:24]([CH3:25])([CH3:26])[CH3:27])=[O:22])[CH2:19][CH2:20]5)=[N:13][CH:14]=4)=[CH:31][C:32]3=[N:38][CH:37]=2)[CH:44]=[CH:43][CH:42]=1)=[O:47]

Participants

8

Reactant 3

HCID 10340Sodium CarbonateHCID 16217947Tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazine-1-carboxylateHCID 67980172N-[3-(7-chloroimidazo[1,2-b]pyridazin-3-yl)phenyl]-N'-(2,2,2-trifluoroethyl)urea

Product 1

HCID 67980015Tert-butyl 4-(5-{3-[3-({[(2,2,2-trifluoroethyl)amino]carbonyl}amino)phenyl]imidazo[1,2-b]pyridazin-7-yl}pyridin-2-yl)piperazine-1-carboxylate

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
110 °C

Procedure

A mixture of tert-butyl 4-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl]piperazine-1-carboxylate (46.3 mg, 0.119 mmol, Aldrich, Cat. No. 654337), N-[3-(7-chloroimidazo[1,2-b]pyridazin-3-yl)phenyl]-N′-(2,2,2-trifluoroethyl)urea (40.0 mg, 0.108 mmol, Example 30, Step 3), tetrakis(triphenylphosphine)palladium(0) (6.25 mg, 0.00541 mmol) and sodium carbonate (34.4 mg, 0.324 mmol) in dioxane (1 mL) and water (0.3 mL) was degassed and recharged with nitrogen three times, and heated and stirred at 110° C. for 3 h. After cooling, the mixture was diluted with ethyl acetate, washed with water and brine. The organic layer was dried over MgSO4, filtered and concentrated under reduced pressure. The residue was the desired product which was directly used in next step without further purification. LCMS (M+H)+: m/z=597.2.

Workup

  1. temperatureheated
  2. temperatureAfter cooling
  3. washwashed with water and brine
  4. dry with materialThe organic layer was dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customwas directly used in next step without further purification

Sources & evidence

ORD record
ord-8f748affe5f842d79403bb7367bc440c
Source dataset
uspto-grants-2014_06
Patent number
US08754114B2

Reaction notes

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