Hydrazine → N-{(1S)-2-amino-1-[(3-fluorophenyl)methyl]ethyl}-5-chloro-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide

HRID 2392035Notes

Reaction equation

HRID 2392035 reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][C@@H:10]([CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([F:30])[CH:25]=2)[CH2:11][N:12]2C(=O)C3C(=CC=CC=3)C2=O)=[O:8])=[CH:4][C:3]=1[C:31]1[N:35]([CH3:36])[N:34]=[CH:33][CH:32]=1.NN>O1CCCC1.CO>[NH2:12][CH2:11][C@@H:10]([NH:9][C:7]([C:5]1[S:6][C:2]([Cl:1])=[C:3]([C:31]2[N:35]([CH3:36])[N:34]=[CH:33][CH:32]=2)[CH:4]=1)=[O:8])[CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([F:30])[CH:25]=1

Participants

5

Reactant 2

HCID 9321HydrazineHCID 578266985-chloro-N-{(1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-[(3-fluorophenyl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide

Product 1

HCID 24996590N-{(1S)-2-amino-1-[(3-fluorophenyl)methyl]ethyl}-5-chloro-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a 250 mL round-bottomed flask was added 5-chloro-N-{(1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-[(3-fluorophenyl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide (7.8 g, 14.91 mmol) and hydrazine (14.50 ml, 298 mmol) in tetrahydrofuran (THF) (75 ml) and methanol (75 mL). After 24 h at RT, the precipitate was filtered, the filtrate was concentrated. The crude product was purified on a silica gel column [CHCl3/MeOH/NH4OH, 90:9:1] to give the title compound as a white solid.

Workup

  1. filtrationthe precipitate was filtered
  2. concentrationthe filtrate was concentrated
  3. customThe crude product was purified on a silica gel column [CHCl3/MeOH/NH4OH, 90:9:1]

Sources & evidence

ORD record
ord-7a62b545b44a415f827c6461dcac3c65
Source dataset
uspto-grants-2012_09
Patent number
US08273782B2

Reaction notes

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