Hydrazine hydrate (1:1) → N-((1S)-2-Amino-1-{[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]methyl}ethyl)-3-chloro-4-[(1-methylethyl)oxy]benzamide

HRID 1697801Notes

Reaction equation

HRID 1697801 reaction equation
[Br:1][C:2]1[C:3]2[N:4]([CH:8]=[C:9]([C:11]3[CH:16]=[CH:15][C:14]([CH2:17][C@H:18]([NH:31][C:32](=[O:44])[C:33]4[CH:38]=[CH:37][C:36]([O:39][CH:40]([CH3:42])[CH3:41])=[C:35]([Cl:43])[CH:34]=4)[CH2:19][N:20]4C(=O)C5C(=CC=CC=5)C4=O)=[CH:13][CH:12]=3)[N:10]=2)[CH:5]=[CH:6][CH:7]=1.O.NN>C(O)C>[NH2:20][CH2:19][C@@H:18]([NH:31][C:32](=[O:44])[C:33]1[CH:38]=[CH:37][C:36]([O:39][CH:40]([CH3:42])[CH3:41])=[C:35]([Cl:43])[CH:34]=1)[CH2:17][C:14]1[CH:15]=[CH:16][C:11]([C:9]2[N:10]=[C:3]3[C:2]([Br:1])=[CH:7][CH:6]=[CH:5][N:4]3[CH:8]=2)=[CH:12][CH:13]=1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 57594674HCID 57594674, compound

Product 1

HCID 57594540N-((1S)-2-Amino-1-{[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]methyl}ethyl)-3-chloro-4-[(1-methylethyl)oxy]benzamide

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of N-{(1S)-2-[4-(8-bromoimidazo[1,2-a]pyridin-2-yl)phenyl]-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-3-chloro-4-[(1-methylethyl)oxy]benzamide (1.5 mmol) in ethanol (10 mL) was added hydrazine monohydrate (7.6 mmol). The reaction stirred for 18 h at 50° C. upon which a white precipitate formed and was filtered. The filtrate was concentrated in vacuo. The resultant light yellow solid was used directly in the next reaction without further purification. ESMS [M+H]+: 533.2

Workup

  1. customformed
  2. filtrationwas filtered
  3. concentrationThe filtrate was concentrated in vacuo
  4. customThe resultant light yellow solid was used directly in the next reaction without further purification

Sources & evidence

ORD record
ord-3fb09209b6784e0184ca0a61ee8471be
Source dataset
uspto-grants-2012_04
Patent number
US08163919B2

Reaction notes

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