Ethanol → HCID 22175261, compound
Reaction equation
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16](=[O:42])[NH:17][CH2:18][C:19]3[N:20]([CH2:38][CH:39]([CH3:41])[CH3:40])[C:21](=[O:37])[C:22]4[C:27]([C:28]=3[O:29][CH2:30][CH2:31][CH2:32][CH3:33])=[CH:26][C:25]([C:34]([NH2:36])=[S:35])=[CH:24][CH:23]=4)[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.Cl[CH2:44][C:45]([O:47][CH2:48][CH3:49])=[O:46].O.[CH2:51](O)[CH3:52]>>[CH2:30]([O:29][C:28]1[C:27]2[C:22](=[CH:23][CH:24]=[C:25]([C:34]3[S:35][C:44]([C:45]([O:47][CH2:48][CH3:49])=[O:46])=[C:51]([CH3:52])[N:36]=3)[CH:26]=2)[C:21](=[O:37])[N:20]([CH2:38][CH:39]([CH3:41])[CH3:40])[C:19]=1[CH2:18][NH:17][C:16]([O:15][CH2:14][CH:12]1[C:11]2[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=2[C:5]2[C:13]1=[CH:1][CH:2]=[CH:3][CH:4]=2)=[O:42])[CH2:31][CH2:32][CH3:33]Participants
5
Procedure
A solution of 9H-fluoren-9-ylmethyl[6-(aminocarbothioyl)-4-butoxy-2-isobutyl-1-oxo-1,2-dihydro-3-isoquinolinyl]methylcarbamate (2.33 g, 4 mmol) and ethyl 2-chloroacetate (1.32 g, 8 mmol) in ethanol (20 ml) was refluxed under heating for 10 h. The resulting reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give ethyl 2-[4-butoxy-3-({[(9H-fluoren-9-ylmethoxy)carbonyl]amino}methyl)-2-isobutyl-1-oxo-1,2-dihydro-6-isoquinolinyl]-4methyl-1,3-thiazole-5-carboxylate (1.81 g, 65.3%) as crystals.
Workup
- temperatureunder heating for 10 h
- customThe resulting reaction mixture
- extractionextracted with ethyl acetate
- washThe extract was washed with brine
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography
Sources & evidence
- ORD record
- ord-5f075d5c1d8d4476972c55e4eeee85ef
- Source dataset
- uspto-grants-2006_04
- Patent number
- US07034039B2
Reaction notes
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