Potassium Carbonate → HCID 22923676, compound
Reaction equation
[OH:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7](=[O:12])[CH:6]=[CH:5]2.C(=O)([O-])[O-].[K+].[K+].[CH3:19][O:20][CH2:21][O:22][CH:23]1[CH2:28][CH2:27][N:26]([CH2:29][CH2:30][N:31]([CH2:35][CH2:36][CH2:37]Cl)[C:32]([NH2:34])=[O:33])[CH2:25][CH2:24]1>CN(C)C=O>[CH3:19][O:20][CH2:21][O:22][CH:23]1[CH2:28][CH2:27][N:26]([CH2:29][CH2:30][N:31]([C:32]([NH:34][CH2:5][CH2:6][CH2:7][O:1][C:2]2[CH:3]=[C:4]3[C:9](=[CH:10][CH:11]=2)[NH:8][C:7](=[O:12])[CH:6]=[CH:5]3)=[O:33])[CH2:35][CH:36]2[CH2:37][CH2:9][CH2:10][CH2:11][CH2:2][CH2:3][CH2:4]2)[CH2:25][CH2:24]1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 1.6 g of 6-hydroxycarbostyril, 1.4 g of potasium carbonate and 4.2 g of N-cyclo-octylmethyl-N-[2-(4-methoxymethoxy-1-piperidinyl)-ethyl-N-(3-chloropropyl)urea in 20 ml of dimethylformamide was stirred at 80° C. for 1 day. The reaction mixture was poured into ice water, followed by extraction with ethyl acetate. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 5% methanol/dichloromethane) to obtain 0.76 g of 6-[3-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N-cyclooctylmethylamino}carbonylaminopropoxy]carbostyril.
Workup
- extractionfollowed by extraction with ethyl acetate
- washThe extract was washed with water
- dry with materialdried with magnesium sulfate
- customThe solvent was removed by distillation
- customThe resulting residue was purified by a silica gel column chromatography (eluant: 5% methanol/dichloromethane)
Sources & evidence
- ORD record
- ord-5623de3644f548f8b6eb603c27c20eca
- Source dataset
- uspto-grants-1997_08
- Patent number
- US05658926
Reaction notes
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