Phthalimide → trans-2-{[2-(5-fluoro-2-methyl-2H-indazol-4-yl)cyclopropyl]methyl}-1H-isoindole-1,3(2H)-dione

HRID 1639784Notes

Reaction equation

HRID 1639784 reaction equation
[F:1][C:2]1[CH:10]=[CH:9][C:8]2[C:4](=[CH:5][N:6]([CH3:11])[N:7]=2)[C:3]=1[C@@H:12]1[CH2:14][C@H:13]1[CH2:15]O.N(C(OCC)=O)=NC(OCC)=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[C:48]1(=[O:58])[NH:52][C:51](=[O:53])[C:50]2=[CH:54][CH:55]=[CH:56][CH:57]=[C:49]12>O1CCCC1.C1(C)C=CC=CC=1>[F:1][C:2]1[CH:10]=[CH:9][C:8]2[C:4](=[CH:5][N:6]([CH3:11])[N:7]=2)[C:3]=1[C@@H:12]1[CH2:14][C@H:13]1[CH2:15][N:52]1[C:48](=[O:58])[C:49]2[C:50](=[CH:54][CH:55]=[CH:56][CH:57]=2)[C:51]1=[O:53]

Participants

7

Reactant 4

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 66720702trans-[2-(5-fluoro-2-methyl-2H-indazol-4-yl)cyclopropyl]methanol

Product 1

HCID 66720673trans-2-{[2-(5-fluoro-2-methyl-2H-indazol-4-yl)cyclopropyl]methyl}-1H-isoindole-1,3(2H)-dione

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of trans-[2-(5-fluoro-2-methyl-2H-indazol-4-yl)cyclopropyl]methanol (500 mg, 2.27 mmol) in tetrahydrofuran (22 mL) were added a solution (40%, 1.24 mL, 2.72 mmol) of diethyl azodicarboxylate in toluene, triphenylphosphine (774 mg, 2.95 mmol) and phthalimide (434 mg, 2.95 mmol), and the mixture was stirred under nitrogen atmosphere at room temperature for 1.5 hr. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane=10/90→40/60) to give trans-2-{[2-(5-fluoro-2-methyl-2H-indazol-4-yl)cyclopropyl]methyl}-1H-isoindole-1,3(2H)-dione as a crudely purified product (893 mg).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. customThe residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane=10/90→40/60)

Sources & evidence

ORD record
ord-cc8cd5f401554c40880bd8ff20b6448b
Source dataset
uspto-grants-2012_02
Patent number
US08110585B2

Reaction notes

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