Hydrazine hydrate (1:1) → HCID 178452593, compound

HRID 1509153Notes

Reaction equation

HRID 1509153 reaction equation
[C:1]([O:5][C:6](=[O:35])[NH:7][C:8]1([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[C:19]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)=[CH:20][C:21]4[NH:26][C:25](=S)[CH2:24][O:23][C:22]=4[N:28]=3)=[CH:14][CH:13]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2].O.[NH2:37][NH2:38]>C1COCC1>[C:1]([O:5][C:6](=[O:35])[NH:7][C:8]1([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[C:19]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)=[CH:20][C:21]4[NH:26]/[C:25](=[N:37]/[NH2:38])/[CH2:24][O:23][C:22]=4[N:28]=3)=[CH:14][CH:13]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 86683631Tert-butyl (1-(4-(7-phenyl-2-thioxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-6-yl)phenyl)cyclobutyl)carbamate

Product 1

HCID 178452593HCID 178452593, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of tert-butyl(1-(4-(7-phenyl-2-thioxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-6-yl)phenyl)cyclobutyl)carbamate (2 g, 2.05 mmol) in THF (350 mL) was added hydrazine monohydrate (645 μl, 20.51 mmol) to give a yellow solution. The resulting mixture was stirred at room temperature for 2 hours. The mixture was filtered to remove insoluble black particles and concentrated to dryness under reduced pressure. The resulting yellow solid was used directly in the following step as crude without any further purification. LCMS (Method D): RT=1.04 min, M+1=486.

Workup

  1. customto give a yellow solution
  2. filtrationThe mixture was filtered
  3. customto remove insoluble black particles
  4. concentrationconcentrated to dryness under reduced pressure
  5. customThe resulting yellow solid was used directly in the following step as crude without any further purification

Sources & evidence

ORD record
ord-5ae326018fa045cf9701e07ac78652bf
Source dataset
uspto-grants-2015_12
Patent number
US09221838B2

Reaction notes

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