Trifluoroacetic acid → HCID 21477622, compound

HRID 864396Notes

Reaction equation

HRID 864396 reaction equation
FC(F)(F)C(O)=O.CC(C)(OC([N:14]1[CH2:19][CH2:18][N:17]([C:20]2[C:25]([NH:26][CH:27]([CH3:29])[CH3:28])=[CH:24][N:23]=[CH:22][N:21]=2)[CH2:16][CH2:15]1)=O)C>ClCCl.[OH-].[Na+]>[CH3:29][CH:27]([NH:26][C:25]1[C:20]([N:17]2[CH2:16][CH2:15][NH:14][CH2:19][CH2:18]2)=[N:21][CH:22]=[N:23][CH:24]=1)[CH3:28]

Participants

5

Reactant 2

HCID 6422Trifluoroacetic acidHCID 214776211,1-Dimethylethyl 4-[5-[(1-methylethyl)amino]-4-pyrimidinyl]-1-piperazinecarboxylate

Product 1

HCID 21477622HCID 21477622, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 14798Sodium HydroxideSolvent

Procedure

Trifluoroacetic acid (5 ml) is added to a solution of 1-[1,1-dimethylethoxy-carbonyl]-4-[5-(1-methylethylamino)-4-pyrimidinyl]piperazine (PREPARATION 29, 0.37 g) in dichloromethane (20 ml) at -78°. The reaction is allowed to warm to 20°-25° overnight, and then diluted with excess aqueous sodium hydroxide solution (10%). The phases are separated. The aqueous phase is extracted twice again with dichloromethane. The combined organic extracts are washed with saline, dried over sodium sulfate, and concentrated under reduced pressure to give the title compound, NMR (CDCl3) 1.25, 1.7, 3.01, 3.21, 3.45, 3.5, 7.86 and 8.34δ.

Workup

  1. temperatureto warm to 20°-25° overnight
  2. customThe phases are separated
  3. extractionThe aqueous phase is extracted twice again with dichloromethane
  4. washThe combined organic extracts are washed with saline
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b6c17b88196f417bacfc671520786eeb
Source dataset
uspto-grants-1996_10
Patent number
US05563142

Reaction notes

Loading…