HCID 23511825, compound → ethyl 3-methoxy-4-[2-[3-methoxy-4-[N'-(2-fluorophenyl)ureido]phenylacetyl]ethylaminoethoxy]benzoate
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:20][C:21]([OH:23])=O)[CH:6]=[CH:7][C:8]=1[NH:9][C:10]([NH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[F:19])=[O:11].[CH3:24][O:25][C:26]1[CH:27]=[C:28]([CH:34]=[CH:35][C:36]=1[O:37][CH2:38][CH2:39][NH:40][CH2:41][CH3:42])[C:29]([O:31][CH2:32][CH3:33])=[O:30]>CCOC(C)=O>[CH3:24][O:25][C:26]1[CH:27]=[C:28]([CH:34]=[CH:35][C:36]=1[O:37][CH2:38][CH2:39][NH:40][CH2:41][CH2:42][C:21](=[O:23])[CH2:20][C:5]1[CH:6]=[CH:7][C:8]([NH:9][C:10]([NH:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[F:19])=[O:11])=[C:3]([O:2][CH3:1])[CH:4]=1)[C:29]([O:31][CH2:32][CH3:33])=[O:30]Participants
Procedure
To a stirred solution of pentafluorophenyl ester of 3-methoxy-4-[N′-(2-fluorophenyl)ureido]phenylacetic acid (135 mg, 0.28 mmol) and ethyl 3-methoxy-4-(2-ethylaminoethoxy)benzoate (78 mg, 0.29 mmol) was added Et3 N (0.1 mL, 0.72 mmol), and the resulting mixture was stirred overnight. The mixture was diluted with EtOAc, washed successively with 0.5 N HCl, brine, dried over Na2SO4, and evaporated. The residue was purified by column chromatography on silica-gel with CHCl3-MeOH (50:1, v/v) as eluent to give 160 mg(q.y.) ethyl 3-methoxy-4-[2-[3-methoxy-4-[N′-(2-fluorophenyl)ureido]phenylacetyl]ethylaminoethoxy]benzoate as an oil. 1H-NMR (CDCl3) δ 1.13–1.23 (m, 3 H), 1.37–1.40 (m, 3 H), 2.90–3.89 (m, 12 H), 4.09–4.28 (m, 2 H), 4.33–4.39 (m, 2 H), 6.70–8.21 (series of m, total 12 H).
Workup
- washwashed successively with 0.5 N HCl, brine
- dry with materialdried over Na2SO4
- customevaporated
- customThe residue was purified by column chromatography on silica-gel with CHCl3-MeOH (50:1
Sources & evidence
- ORD record
- ord-efa8f729e49e43d1a8ebf4506a051c45
- Source dataset
- uspto-grants-2007_02
- Patent number
- US07179819B2
Reaction notes
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