Methanol → (S)-methyl 2-(4-oxo-8-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)-2-phenylacetate

HRID 1750983Notes

Reaction equation

HRID 1750983 reaction equation
[O:1]=[C:2]1[C:6]2([CH2:11][CH2:10][NH:9][CH2:8][CH2:7]2)[N:5]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:4][N:3]1[C@@H:18]([C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1)[C:19]([O:21][CH3:22])=[O:20].I[CH2:30][CH2:31][CH2:32][N:33]1[C:37]2[CH:38]=[CH:39][CH:40]=[CH:41][C:36]=2[NH:35][C:34]1=[O:42].C(=O)([O-])[O-].[K+].[K+].CO>CN(C)C=O.ClCCl.O>[O:1]=[C:2]1[C:6]2([CH2:7][CH2:8][N:9]([CH2:30][CH2:31][CH2:32][N:33]3[C:37]4[CH:38]=[CH:39][CH:40]=[CH:41][C:36]=4[NH:35][C:34]3=[O:42])[CH2:10][CH2:11]2)[N:5]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:4][N:3]1[C@@H:18]([C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1)[C:19]([O:21][CH3:22])=[O:20]

Participants

8

Reactant 4

HCID 887MethanolHCID 11430Potassium CarbonateHCID 13564030HCID 13564030, compoundHCID 66652128(S)-methyl 2-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)-2-phenylacetate

Product 1

HCID 66652239(S)-methyl 2-(4-oxo-8-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)-2-phenylacetateYield 11.9%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
65 °C

Procedure

A mixture of (S)-methyl 2-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)-2-phenylacetate (159 mg, 0.383 mmol, 1 equiv), 1-(3-iodopropyl)-1,3-dihydro-2H-benzimidazol-2-one (115.6 mg, 0.38 mmol, 1 equiv) and potassium carbonate (158.6 mg, 1.148 mmol, 3 equiv) in N,N-dimethylformamide was heated at 65° C. for 16 h. The reaction was cooled to ambient temperature and worked up using 5% methanol in dichloromethane and water. The organic layer was dried over MgSO4, and concentrated in vacuo. The crude mixture was purified using preparatory thin layer chromatography in 7% methanol in dichloromethane. The purified extract was lyophilized to afford the title compound as a white solid (25 mg, <10%); 1H NMR (400 MHz, DMSO-d6): δ 1.61 (bs, 2H), 1.84 (bs, 2H), 2.46 (bs, 4H); 2.50-2.51 (m, 4H); 3.74 (s, 3H); 3.85 (t, 2H, J=7.2 and 6.4 Hz); 4.15 (d, 1H, J=4.8 Hz); 4.80 (d, 1H, J=4.8 Hz); 5.89 (s, 1H)); 6.79-6.85 (m, 3H); 6.97 (d, 3H, J=2.8 Hz); 7.16-7.18 (m, 1H); 7.23 (t, 2H, J=7.2 and 8.8 Hz); 7.39-7.46 (m, 5H); 10.82 (s, 1H); MS for C32H35N5O4 m/z 554.11 (M+H)+.

Workup

  1. temperatureThe reaction was cooled to ambient temperature
  2. dry with materialThe organic layer was dried over MgSO4
  3. concentrationconcentrated in vacuo
  4. customThe crude mixture was purified
  5. extractionThe purified extract

Sources & evidence

ORD record
ord-ca29b6eaa956461f975e0398dcb26843
Source dataset
uspto-grants-2015_10
Patent number
US09156840B2

Reaction notes

Loading…