Hydrochloric Acid → 1-[2-Amino-6-(piperidin-3-ylamino)pyridin-3-yl]-2,2,2-trifluoroethanone hydrochloride

HRID 57693Notes

Reaction equation

HRID 57693 reaction equation
C(OC([NH:8][C:9]1[N:14]=[C:13]([NH:15][CH:16]2[CH2:21][CH2:20][CH2:19][N:18](C(OC(C)(C)C)=O)[CH2:17]2)[CH:12]=[CH:11][C:10]=1[C:29](=[O:34])[C:30]([F:33])([F:32])[F:31])=O)(C)(C)C.[ClH:35]>O1CCOCC1.C(OCC)C>[ClH:35].[NH2:8][C:9]1[C:10]([C:29](=[O:34])[C:30]([F:32])([F:33])[F:31])=[CH:11][CH:12]=[C:13]([NH:15][CH:16]2[CH2:21][CH2:20][CH2:19][NH:18][CH2:17]2)[N:14]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 57911775tert-Butyl 3-({6-[(tert-butoxycarbonyl)amino]-5-(trifluoroacetyl)pyridin-2-yl}amino)piperidine-1-carboxylate

Product 1

HCID 670602981-[2-Amino-6-(piperidin-3-ylamino)pyridin-3-yl]-2,2,2-trifluoroethanone hydrochloride

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 312751,4-DioxaneSolvent

Procedure

670 mg (1.37 mmol) of tert-butyl 3-({6-[(tert-butoxycarbonyl)amino]-5-(trifluoroacetyl)pyridin-2-yl}amino)piperidine-1-carboxylate (Example 39A) were dissolved in 25 ml of a solution of hydrochloric acid in dioxane (4 M), and the mixture was stirred at RT for 20 h. After the reaction had gone to completion, the reaction mixture was diluted with diethyl ether (100 ml) and the precipitate was filtered off and washed with diethyl ether (100 ml) and dried. This gave 286 mg (64% of theory) of the product as a solid.

Workup

  1. filtrationthe precipitate was filtered off
  2. washwashed with diethyl ether (100 ml)
  3. customdried

Sources & evidence

ORD record
ord-629f7e27754b4441bdad0a9e6ae8f12b
Source dataset
uspto-grants-2016_09
Patent number
US09434731B2

Reaction notes

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