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Acetic Acid → (R)-5-(1-amino-1-oxobutan-2-ylamino)-3-(3-methylisothiazol-5-ylamino)pyrazine-2-carboxamide

HRID 332826
Notes
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Reaction equation

HRID 332826 reaction equation
[C:1]([C:3]1[N:4]=[CH:5][C:6]([NH:16][C@H:17]([CH2:21][CH3:22])[C:18]([NH2:20])=[O:19])=[N:7][C:8]=1[NH:9][C:10]1[S:14][N:13]=[C:12]([CH3:15])[CH:11]=1)#[N:2].[OH-].[Na+].OO.CC(O)=[O:29]>CCO.CS(C)=O>[NH2:20][C:18](=[O:19])[C@H:17]([NH:16][C:6]1[N:7]=[C:8]([NH:9][C:10]2[S:14][N:13]=[C:12]([CH3:15])[CH:11]=2)[C:3]([C:1]([NH2:2])=[O:29])=[N:4][CH:5]=1)[CH2:21][CH3:22]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 784Hydrogen PeroxideHCID 14798Sodium HydroxideHCID 86685617(R)-2-(5-cyano-6-(3-methylisothiazol-5-ylamino)pyrazin-2-ylamino)butanamide

Product 1

HCID 86685618(R)-5-(1-amino-1-oxobutan-2-ylamino)-3-(3-methylisothiazol-5-ylamino)pyrazine-2-carboxamide

Reagents, catalysts & solvents 2

HCID 679
Dimethyl Sulfoxide
Solvent
HCID 702EthanolSolvent

Procedure

The compound (R)-2-(5-cyano-6-(3-methylisothiazol-5-ylamino)pyrazin-2-ylamino)butanamide (106 mg, 0.334 mmol) was dissolved in EtOH (2 mL) and DMSO (1 mL), aq. 1N NaOH (1.0 mL) and aq. H2O2 (30%, 1.0 mL) were added. The mixture was stirred at room temperature for 15 min. HOAc (0.1 mL) was added. The mixture was then concentrated in vacuo. The residue was purified by HPLC to give the titled compound (38 mg). MS found for C13H17N7O2S as (M+H)+ MS 336.2; UV 206.0, 275.0, 323.1 nm; t 0.365 min. 1H NMR: (CD3OD) δ 7.70 (s, 1H), 6.88 (s, 1H), 4.65 (br.s, 1H), 2.45 (s, 3H), 2.18-2.05 (m, 1H), 1.96-1.87 (m, 1H), 1.10 (t, 3H).

Workup

  1. concentrationThe mixture was then concentrated in vacuo
  2. customThe residue was purified by HPLC

Sources & evidence

ORD record
ord-0db08db56bc04f0cac69a7fd8caf3251
Source dataset
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08877760B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes