Triethylamine → HCID 58996981, compound

HRID 251183Notes

Reaction equation

HRID 251183 reaction equation
[CH3:1][C:2]1[C:3]([CH2:8][N:9]([CH2:16][C:17]2[C:22]([CH3:23])=[CH:21][CH:20]=[CH:19][N:18]=2)[CH:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)=[N:4][CH:5]=[CH:6][CH:7]=1.[CH3:24][CH2:25][N:26](CC)CC.Cl.C(=N)(OCC)C>CO>[NH:26]=[C:25]([N:13]1[CH2:14][CH2:15][CH:10]([N:9]([CH2:16][C:17]2[C:22]([CH3:23])=[CH:21][CH:20]=[CH:19][N:18]=2)[CH2:8][C:3]2[C:2]([CH3:1])=[CH:7][CH:6]=[CH:5][N:4]=2)[CH2:11][CH2:12]1)[CH3:24]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 2724290Ethanimidic acid, ethyl ester, hydrochloride (1:1)HCID 58996965Bis-(3-methyl-pyridin-2-ylmethyl)-piperidin-4-yl-amine

Product 1

HCID 58996981HCID 58996981, compoundYield 34.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of COMPOUND 249 (0.1054 g, 0.34 mmol) in MeOH (4 mL) was added Et3N (0.1 mL, 0.68 mmol) and ethyl acetimidate hydrochloride (0.0549 g, 0.41 mmol), and stirred at room temperature for 24 hours then concentrated. Saturated NaHCO3 (15 mL) was added and extracted with CH2Cl2 (2×40 mL). Purification of the crude material by column chromatography on silica gel (15:1:1 CH2Cl2-MeOH—NH4OH) followed by radial chromatography on silica gel (50:3:2 CH2Cl2-MeOH—NH4OH) provided 0.0408 g (34%) of COMPOUND 338 as a white solid. 1H NMR (CDCl3) δ 1.60-1.72 (m, 2H), 1.90-1.95 (m, 2H), 2.09 (s, 6H), 2.12 (s, 3H), 2.47-2.68 (m, 4H), 3.82 (s, 4H), 4.17 (d, 2H, J=12.3 Hz), 7.06-7.10 (m, 2H), 7.37 (d, 2H, J=7.2 Hz), 8.34 (d, 2H, J=4.5 Hz). 13C NMR (CDCl3) δ 18.39, 23.92, 27.33, 45.64, 55.06, 57.89, 122.77, 133.81, 138.40, 146.29, 157.63, 164.64. ES-MS m/z 352.5 (M+H).

Workup

  1. concentrationthen concentrated
  2. additionSaturated NaHCO3 (15 mL) was added
  3. extractionextracted with CH2Cl2 (2×40 mL)
  4. customPurification of the crude material by column chromatography on silica gel (15:1:1 CH2Cl2-MeOH—NH4OH)

Sources & evidence

ORD record
ord-58bd94126f5e41238fa0131b09e6f1df
Source dataset
uspto-grants-2011_01
Patent number
US07863293B2

Reaction notes

Loading…