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Potassium Phosphate, Tribasic → 5-cyclopropyl-N-methyl-6-[(methylsulfonyl)amino]-2-[4-(prop-1-en-2-yl)phenyl]-2H-indazole-3-carboxamide

HRID 1037537
Notes
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Reaction equation

HRID 1037537 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16]([C:17]([NH:19][CH3:20])=[O:18])=[C:15]3[C:10]([CH:11]=[C:12]([NH:24][S:25]([CH3:28])(=[O:27])=[O:26])[C:13]([CH:21]4[CH2:23][CH2:22]4)=[CH:14]3)=[N:9]2)=[CH:4][CH:3]=1.B1(C(C)=C)O[C:32](C)(C)[C:31](C)([CH3:36])O1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C1(P(C2CCCCC2)C2CCCCC2)CCCCC1>CC([O-])=O.CC([O-])=O.[Pd+2].O.C1(C)C=CC=CC=1>[CH:21]1([C:13]2[C:12]([NH:24][S:25]([CH3:28])(=[O:27])=[O:26])=[CH:11][C:10]3[C:15](=[C:16]([C:17]([NH:19][CH3:20])=[O:18])[N:8]([C:5]4[CH:6]=[CH:7][C:2]([C:31]([CH3:36])=[CH2:32])=[CH:3][CH:4]=4)[N:9]=3)[CH:14]=2)[CH2:23][CH2:22]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 75806TricyclohexylphosphineHCID 109974264,4,5,5-Tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolaneHCID 56962687HCID 56962687, compound

Product 1

HCID 675126445-cyclopropyl-N-methyl-6-[(methylsulfonyl)amino]-2-[4-(prop-1-en-2-yl)phenyl]-2H-indazole-3-carboxamide
Yield 36.2%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Conditions

Temperature
95 °C

Procedure

2-(4-bromophenyl)-5-cyclopropyl-N-methyl-6-[(methylsulfonyl)amino]-2H-indazole-3-carboxamide (i) (30 mg, 0.065 mmol), 2-isopropenylboronic acid pinacol ester (37 μL, 0.20 mmol), potassium phosphate (55 mg, 0.26 mmol), tricyclohexylphosphine (3.5 mg, 0.013 mmol) and Pd(OAc)2 (2.1 mg, 0.0094 mmol) had degassed toluene (1 mL) and water (0.1 mL) added and the reaction was heated at 95° C. under argon for 5 h. The reaction mixture was concentrated to dryness and the residue was suspended in DMSO (1 mL), centrifuged, supernatant removed and purified by reverse phase flash column chromatography eluting with ACN/water (0-40-100%) affording 5-cyclopropyl-N-methyl-6-[(methylsulfonyl)amino]-2-[4-(prop-1-en-2-yl)phenyl]-2H-indazole-3-carboxamide (ii) as a white solid (10 mg, 27%).

Workup

  1. additionadded
  2. concentrationThe reaction mixture was concentrated to dryness
  3. customcentrifuged, supernatant removed
  4. custompurified by reverse phase flash column chromatography
  5. washeluting with ACN/water (0-40-100%)

Sources & evidence

ORD record
ord-fa5cd9f918a1472d90ef2971fd576fe1
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08546389B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes