Benzoyl chloride → n-(1-Benzoylpiperidin-4-yl)-n'-{[4-(3,4-dichlorobenzyl)morpholin-2-yl]methyl}urea
Reaction equation
[C:1](Cl)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[Cl:11][C:12]1[CH:13]=[C:14]([CH:33]=[CH:34][C:35]=1[Cl:36])[CH2:15][N:16]1[CH2:21][CH2:20][O:19][CH:18]([CH2:22][NH:23][C:24]([NH:26][CH:27]2[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]2)=[O:25])[CH2:17]1.C(N(CC)C(C)C)(C)C>ClCCl>[C:1]([N:30]1[CH2:31][CH2:32][CH:27]([NH:26][C:24]([NH:23][CH2:22][CH:18]2[O:19][CH2:20][CH2:21][N:16]([CH2:15][C:14]3[CH:33]=[CH:34][C:35]([Cl:36])=[C:12]([Cl:11])[CH:13]=3)[CH2:17]2)=[O:25])[CH2:28][CH2:29]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
5
Conditions
- Temperature
- 23 °C
Procedure
Benzoyl choride (0.014 ml) was added to a solution of Intermediate 16 (0.04 g) and N,N-diisopropylethylamine (0.048 ml) in dichloromethane (3 ml). The solution was stirred for 5 h at 23° C. The solvent was removed in vacuo and the residue purified by solid phase extraction (Isolute SCX sulphonic acid column) eluting with methanol followed by 10% 0.880 ammonia solution in methanol. The basic fraction was concentrated in vacuo and the residue was further purified using a silica gel solid phase extraction cartridge (1 g Varian Bond Elut), eluting sequentially with dichloromethane, ethyl acetate, acetone, acetonitrile, and methanol, to give the title compound as a clear gum (0.024 g).
Workup
- customThe solvent was removed in vacuo
- customthe residue purified by solid phase extraction (Isolute SCX sulphonic acid column)
- washeluting with methanol
- concentrationThe basic fraction was concentrated in vacuo
- customthe residue was further purified
- extractiona silica gel solid phase extraction cartridge (1 g Varian Bond Elut)
- washeluting sequentially with dichloromethane, ethyl acetate, acetone, acetonitrile, and methanol
Sources & evidence
- ORD record
- ord-ea26f59dc24c48f59bbc5afc970af945
- Source dataset
- uspto-grants-2007_01
- Patent number
- US07157457B2
Reaction notes
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