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

HRID 1186541Notes

Reaction equation

HRID 1186541 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][CH:31]([C:42]5[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=5)[CH2:32][CH2:33][NH:34]C(OC(C)(C)C)=O)[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>[NH2:34][CH2:33][CH2:32][CH: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[CH2:12][CH2:13][CH:8]([NH2:7])[CH2:9][CH2:10]4)[C:16]3=[N:23][CH:22]=2)[CH:29]=[CH:28][N:27]=1)[C:42]1[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 68227022(4-{3-[2-(3-Tert-butoxycarbonylamino-1-phenyl-propylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester

Product 1

HCID 66546332N-{3-[2-(3-amino-1-phenyl-propylamino)-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-(3-tert-butoxycarbonylamino-1-phenyl-propylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester (110 mg, 0.17 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-(3-amino-1-phenyl-propylamino)-pyrimidin-4-yl]-imidazo[1,2-a]pyrazin-8-yl}-cyclohexane-1,4-diamine; hydrochloride. (Yield 27 mg, 16.4%). 1H NMR (300 MHz, CD3OD): δ 8.67 (s, 2H), 8.43 (brs, 1H), 7.57-7.55(m, 3H), 7.44-7.31(m, 4H), 5.38 (s, 1H), 4.08 (brs, 1H), 3.21-3.16(m, 3H), 2.42-2.25(m, 6H), 1.75-1.73(m, 4H).

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-ba7776b176424a1c8ffede53096af1c4
Source dataset
uspto-grants-2014_03
Patent number
US08673905B2

Reaction notes

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