Piperidine → HCID 57780682, compound

HRID 2076103Notes

Reaction equation

HRID 2076103 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([NH:15][C:16]2[N:25]=[CH:24][C:23]3[CH2:22][CH2:21][CH2:20][CH:19](OS(C)(=O)=O)[C:18]=3[N:17]=2)[CH:6]=[CH:7][C:8]=1[N:9]1[CH:13]=[C:12]([CH3:14])[N:11]=[CH:10]1.[NH:31]1[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32]1.C(N(CC)CC)C>CN(C)C=O.O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([NH:15][C:16]2[N:25]=[CH:24][C:23]3[CH2:22][CH2:21][CH2:20][CH:19]([N:31]4[CH2:36][CH2:35][CH2:34][CH2:33][CH2:32]4)[C:18]=3[N:17]=2)[CH:6]=[CH:7][C:8]=1[N:9]1[CH:13]=[C:12]([CH3:14])[N:11]=[CH:10]1

Participants

6

Reactant 3

HCID 8082Piperidine2×HCID 8471TriethylamineHCID 57780691HCID 57780691, compound

Product 1

HCID 57780682HCID 57780682, compoundYield 18%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a suspension of methanesulfonic acid 2-[3-methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-5,6,7,8-tetrahydro-quinazolin-8-yl ester (76 mg, 0.18 mmol) in dimethylformamide (2 mL) was added under nitrogen at 0° C. piperidine (30 mg, 0.35 mmol) and triethyl amine (36 mg, 0.35 mmol). The reaction was stirred at room temperature over night. Piperidine (30 mg, 0.35 mmol) was added and the reaction stirred at room temperature for 3 hours. The reaction was diluted with water and extracted twice with diethyl ether. The combined organic layers were washed with dried over sodium sulfate, filtered and the solvent was removed under reduced pressure. The residue was purified on silica gel using dichloromethane/methanol/concentrated aqueous ammonia (19:1:0.2 v/v/v) as eluent to yield the title compound (13 mg, 18%) as an orange solid. MS ISP (m/e): 334.3 (27), 419.3 (100) [(M+H)+]. 1H NMR (DMSO-D6, 300 MHz): δ (ppm)=9.60 (s, 1H), 8.26 (s, 1H), 7.82 (s, 1H), 7.65 (s, 1H), 7.60 (d, 1H), 7.19 (d, 1H), 7.03 (s, 1H), 3.80 (s, 3H), 3.63 (m, 1H), 3.05 (m, 1H), 2.55-2.80 (m, 2H), 2.25 (m, 2H), 2.14 (s, 3H), 1.89 (m, 2H), 1.38-1.68 (m, 8H).

Workup

  1. stirringthe reaction stirred at room temperature for 3 hours
  2. extractionextracted twice with diethyl ether
  3. washThe combined organic layers were washed
  4. dry with materialwith dried over sodium sulfate
  5. filtrationfiltered
  6. customthe solvent was removed under reduced pressure
  7. customThe residue was purified on silica gel

Sources & evidence

ORD record
ord-224149137b5b47dc979f0e3a4431214d
Source dataset
uspto-grants-2011_04
Patent number
US07923450B2

Reaction notes

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