Picolinimidohydrazide → tert-butyl 4-[[(Z)-[amino(pyridin-2-yl)methylidene]amino]carbamoyl]piperidine-1-carboxylate

HRID 1051311Notes

Reaction equation

HRID 1051311 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([OH:16])=O)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(C1NC=CN=1)(C1NC=CN=1)=O.[N:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1[C:35](=[N:37][NH2:38])[NH2:36]>ClCCl.O>[NH2:36]/[C:35](/[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][N:29]=1)=[N:37]\[NH:38][C:14]([CH:11]1[CH2:10][CH2:9][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:13][CH2:12]1)=[O:16]

Participants

6

Reactant 3

HCID 70493PicolinimidohydrazideHCID 3928711-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acidHCID 5250894Bis-(1H-imidazol-2-YL)-methanone

Product 1

HCID 87242610tert-butyl 4-[[(Z)-[amino(pyridin-2-yl)methylidene]amino]carbamoyl]piperidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

To as solution of 1-(tert-butoxycarbonyl) piperidine-4-carboxylic acid 37 g (167 mM) in dichloromethane (300 ml) is added carbonyl diimidazole (1 eq.) in small portion over a period of 30 min. pyridine-2-carbohydrazonamide is then added to reaction mixture and stirred at room temperature for 3 hrs. Dichloromethane is evaporated and reaction mass is then stirred in water for 30 min. solid precipitated is filtered and dried to afford the desired compound.

Workup

  1. additionis then added to reaction mixture
  2. customDichloromethane is evaporated
  3. customreaction mass
  4. customprecipitated
  5. filtrationis filtered
  6. customdried

Sources & evidence

ORD record
ord-79d3e14e20cc433e8b425e1a2f85633c
Source dataset
uspto-grants-2016_07
Patent number
US09387204B2

Reaction notes

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