Ammonium Chloride → Tert-butyl cis-2-(5-aminocarbonyl-6-chloro-3-fluoropyridin-2-ylamino)cyclohexylcarbamate

HRID 340436Notes

Reaction equation

HRID 340436 reaction equation
[Cl-].[NH4+].CC[N:5]=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(N(C(C)C)CC)(C)C.[C:34]([O:38][C:39]([NH:41][C@H:42]1[CH2:47][CH2:46][CH2:45][CH2:44][C@H:43]1[NH:48][C:49]1[C:57]([F:58])=[CH:56][C:52]([C:53](O)=[O:54])=[C:51]([Cl:59])[N:50]=1)=[O:40])([CH3:37])([CH3:36])[CH3:35]>C(OCC)(=O)C.O.CN(C=O)C>[NH2:5][C:53]([C:52]1[CH:56]=[C:57]([F:58])[C:49]([NH:48][C@H:43]2[CH2:44][CH2:45][CH2:46][CH2:47][C@H:42]2[NH:41][C:39](=[O:40])[O:38][C:34]([CH3:35])([CH3:36])[CH3:37])=[N:50][C:51]=1[Cl:59])=[O:54]

Participants

9

Reactant 5

HCID 25517Ammonium Chloride2×HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 866838426-(cis-2-(Tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinic acid

Product 1

HCID 86683847Tert-butyl cis-2-(5-aminocarbonyl-6-chloro-3-fluoropyridin-2-ylamino)cyclohexylcarbamateYield 87.7%

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

Ammonium chloride (1.10 g), WSC.HCl (2.97 g), HOBt.H2O (2.37 g), and diisopropylethylamine (7.06 ml) were added to a DMF solution (40 ml) containing 6-(cis-2-(tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinic acid (2.00 g), followed by stirring at room temperature for 7 hours. A saturated aqueous ammonium chloride solution, water, and ethyl acetate were added to the reaction mixture. The organic layer was collected, washed with saturated saline, and dried over anhydrous magnesium sulfate, and the solvent was distilled away under reduced pressure. Diisopropylether was added to the obtained residue, solid matter was collected by filtration, and a white solid of tert-butyl cis-2-(5-aminocarbonyl-6-chloro-3-fluoropyridin-2-ylamino)cyclohexylcarbamate (1.75 g) was thus obtained.

Workup

  1. customThe organic layer was collected
  2. washwashed with saturated saline
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled away under reduced pressure
  5. additionDiisopropylether was added to the obtained residue, solid matter
  6. filtrationwas collected by filtration

Sources & evidence

ORD record
ord-1bbc85f48a654ee691d222ca035ce9ed
Source dataset
uspto-grants-2014_11
Patent number
US08895585B2

Reaction notes

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