Hydrochloric Acid → 4-(4-Methylpiperazin-1-yl)-6-[2-(1H-pyrazol-1-ylacetyl)-1,2,3,4-tetrahydroisoquinolin-7-yl]pyrimidin-2-amine

HRID 449437Notes

Reaction equation

HRID 449437 reaction equation
O.[OH-].[Li+].[N:4]1([CH2:9][C:10]([O:12]CC)=O)[CH:8]=[CH:7][CH:6]=[N:5]1.Cl.Cl.[CH3:17][N:18]1[CH2:23][CH2:22][N:21]([C:24]2[CH:29]=[C:28]([C:30]3[CH:39]=[C:38]4[C:33]([CH2:34][CH2:35][NH:36][CH2:37]4)=[CH:32][CH:31]=3)[N:27]=[C:26]([NH2:40])[N:25]=2)[CH2:20][CH2:19]1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)CC)C>CO.O>[CH3:17][N:18]1[CH2:19][CH2:20][N:21]([C:24]2[CH:29]=[C:28]([C:30]3[CH:39]=[C:38]4[C:33]([CH2:34][CH2:35][N:36]([C:10](=[O:12])[CH2:9][N:4]5[CH:8]=[CH:7][CH:6]=[N:5]5)[CH2:37]4)=[CH:32][CH:31]=3)[N:27]=[C:26]([NH2:40])[N:25]=2)[CH2:22][CH2:23]1

Participants

9

Reactant 6

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 168937Lithium hydroxide, monohydrateHCID 4534671Ethyl 2-(1H-pyrazol-1-yl)acetateHCID 675414894-(4-methylpiperazin-1-yl)-6-(1,2,3,4-tetrahydroisoquinolin-7-yl)pyrimidin-2-amine HCl salt

Product 1

HCID 497798334-(4-Methylpiperazin-1-yl)-6-[2-(1H-pyrazol-1-ylacetyl)-1,2,3,4-tetrahydroisoquinolin-7-yl]pyrimidin-2-amine

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Lithium hydroxide monohydrate (4.4 mg, 0.10 mmol) was added to a solution of ethyl 1H-pyrazol-1-ylacetate (8.0 mg, 0.052 mmol) (Key Organics/Bionet, Cat. #4Y-0601) in methanol (1.0 mL) and water (0.3 mL). The reaction mixture was stirred at r.t. overnight. The mixture was adjusted to pH=4 with aqueous HCl, and concentrated. The residue was dissolved in N,N-dimethylformamide (0.5 mL). To the solution was added 4-(4-methylpiperazin-1-yl)-6-(1,2,3,4-tetrahydroisoquinolin-7-yl)pyrimidin-2-amine HCl salt (15 mg, 0.034 mmol), followed by benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (18 mg, 0.041 mmol) and triethylamine (19 uL, 0.14 mmol). The reaction mixture was stirred at r.t. for 2 h. The mixture was purified by RP-LCMS (pH=10) to afford the desired product. Analytic LCMS (M+H)+: m/z=433.1.

Workup

  1. concentrationconcentrated
  2. dissolutionThe residue was dissolved in N,N-dimethylformamide (0.5 mL)
  3. stirringThe reaction mixture was stirred at r.t. for 2 h
  4. customThe mixture was purified by RP-LCMS (pH=10)

Sources & evidence

ORD record
ord-e23b4e42f2c549a58de51fac97522062
Source dataset
uspto-grants-2013_07
Patent number
US08481732B2

Reaction notes

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