Hydrochloric Acid → N-{3-[2-(2-chloro-benzylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-yl}-cyclohexane-1,4-diamine

HRID 1186557Notes

Reaction equation

HRID 1186557 reaction equation
C(OC(=O)[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[C:16]3[N:17]([C:21]([C:24]4[CH:29]=[CH:28][N:27]=[C:26]([NH:30][CH2:31][C:32]5[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=5[Cl:38])[N:25]=4)=[CH:22][N:23]=3)[CH:18]=[CH:19][N:20]=2)[CH2:10][CH2:9]1)(C)(C)C.Cl>C(O)C>[Cl:38][C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][C:32]=1[CH2:31][NH:30][C:26]1[N:25]=[C:24]([C:21]2[N:17]3[CH:18]=[CH:19][N:20]=[C:15]([NH:14][CH:11]4[CH2:10][CH2:9][CH:8]([NH2:7])[CH2:13][CH2:12]4)[C:16]3=[N:23][CH:22]=2)[CH:29]=[CH:28][N:27]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 68226999(4-{3-[2-(2-Chloro-benzylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester

Product 1

HCID 66546521N-{3-[2-(2-chloro-benzylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-yl}-cyclohexane-1,4-diamine

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of crude (4-{3-[2-(2-chloro-benzylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester (60 mg, 0.11 mmol) in ethanol (5 mL) was added concentrated hydrochloric acid (5 mL) slowly. The reaction mixture was stirred at room temperature for 15 hours. The solvent was removed under reduced pressure and then the solid was purified by prep-HPLC. Several drops of concentrated HCl were added to the fractions with product. After sonicating for several minutes, solution was concentrated under reduced pressure to afford N-{3-[2-(2-chloro-benzylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-yl}-cyclohexane-1,4-diamine; hydrochloride. (Yield 23 mg, 24.2%).

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe solid was purified by prep-HPLC
  3. additionSeveral drops of concentrated HCl were added to the fractions with product
  4. customAfter sonicating for several minutes
  5. concentrationsolution was concentrated under reduced pressure

Sources & evidence

ORD record
ord-3d095261d6854eb1ad4c3ba2ee46907b
Source dataset
uspto-grants-2014_03
Patent number
US08673905B2

Reaction notes

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