Dimethylformamide → (1S,2S)-N-(7-bromoisoquinolin-3-yl)-2-fluorocyclopropanecarboxamide

HRID 468911

Reaction equation

HRID 468911 reaction equation
[Br:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[C:7]([NH2:12])[N:8]=[CH:9]2)=[CH:4][CH:3]=1.[F:13][C@H:14]1[CH2:16][C@H:15]1[C:17](O)=[O:18].F[P-](F)(F)(F)(F)F.N1(O[P+](N2CCCC2)(N2CCCC2)N2CCCC2)C2N=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C.CN(C)C=O>CN(C)C1C=CN=CC=1.C(OCC)(=O)C>[Br:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[C:7]([NH:12][C:17]([C@@H:15]3[CH2:16][C@@H:14]3[F:13])=[O:18])[N:8]=[CH:9]2)=[CH:4][CH:3]=1

Participants

8

Conditions

Temperature
50 °C

Procedure

A mixture of 7-bromoisoquinolin-3-amine (4.531 g, 20.31 mmol), (1S,2S)-2-fluorocyclopropanecarboxylic acid (2.002 g, 19.24 mmol), (7-azabenzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (12.148 g, 23.433 mmol), N,N-diisopropylethylamine (8.50 mL, 48.8 mmol), 4-dimethylaminopyridine (0.245 g, 2.00 mmol), and N,N-dimethylformamide (100 mL, 1000 mmol) was stirred at 50° C. for 18 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate, washed with water and brine, dried over MgSO4, filtered, and concentrated. The crude residue was purified via flash chromatography on silica gel (120 g silica, solvent gradient: 0-30% ethyl acetate in dichloromethane) to yield 6.5208 g of the title compound. LCMS (ESI): M+H=309.2.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. washwashed with water and brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude residue was purified via flash chromatography on silica gel (120 g silica, solvent gradient: 0-30% ethyl acetate in dichloromethane)

Sources & evidence

ORD record
ord-b1f1a2ead6be467e8796a6bb86f36068
Source dataset
uspto-grants-2014_01
Patent number
US08623889B2

Linked notes

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