2-(Ethylamino)ethanol → Tert-butyl 3-(4-{({4'-[2-(ethylamino)ethoxy]-2',6'-dimethylbiphenyl-3-yl}methyl)[(2-nitrophenyl)sulfonyl]amino}-2-fluorophenyl)propanoate

HRID 508078

反応式

HRID 508078 の反応式
[F:1][C:2]1[CH:7]=[C:6]([N:8]([CH2:21][C:22]2[CH:23]=[C:24]([C:28]3[C:33]([CH3:34])=[CH:32][C:31]([OH:35])=[CH:30][C:29]=3[CH3:36])[CH:25]=[CH:26][CH:27]=2)[S:9]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[N+:18]([O-:20])=[O:19])(=[O:11])=[O:10])[CH:5]=[CH:4][C:3]=1[CH2:37][CH2:38][C:39]([O:41][C:42]([CH3:45])([CH3:44])[CH3:43])=[O:40].[CH2:46]([NH:48][CH2:49][CH2:50]O)[CH3:47].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>O1CCCC1>[CH2:46]([NH:48][CH2:49][CH2:50][O:35][C:31]1[CH:32]=[C:33]([CH3:34])[C:28]([C:24]2[CH:25]=[CH:26][CH:27]=[C:22]([CH2:21][N:8]([S:9]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[N+:18]([O-:20])=[O:19])(=[O:10])=[O:11])[C:6]3[CH:5]=[CH:4][C:3]([CH2:37][CH2:38][C:39]([O:41][C:42]([CH3:45])([CH3:44])[CH3:43])=[O:40])=[C:2]([F:1])[CH:7]=3)[CH:23]=2)=[C:29]([CH3:36])[CH:30]=1)[CH3:47]

参加物

6

反応物 4

HCID 80722-(Ethylamino)ethanolHCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 23157516Tert-butyl 3-(2-fluoro-4-{[(4'-hydroxy-2',6'-dimethylbiphenyl-3-yl)methyl][(2-nitrophenyl)sulfonyl]amino}phenyl)propanoate

生成物 1

HCID 23157592Tert-butyl 3-(4-{({4'-[2-(ethylamino)ethoxy]-2',6'-dimethylbiphenyl-3-yl}methyl)[(2-nitrophenyl)sulfonyl]amino}-2-fluorophenyl)propanoate収率 152.7%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of tert-butyl 3-(2-fluoro-4-{[(4′-hydroxy-2′,6′-dimethylbiphenyl-3-yl)methyl][(2-nitrophenyl)sulfonyl]amino}phenyl)propanoate (3.60 g, 5.67 mmol), 2-(ethylamino)ethanol (0.61 mL, 6.24 mmol) and tributylphosphine (2.26 mL, 8.51 mmol) in tetrahydrofuran (100 mL) was added 1,1′-(azodicarbonyl)dipiperidine (2.21 g, 8.53 mmol) under stirring at room temperature, and the mixture was stirred for 16 hr. The resulting precipitate was filtered off, and the filtrate was concentrated under reduced pressure. The residue was subjected to silica gel column chromatography (hexane/ethyl acetate=5/1-hexane/ethyl acetate=1/3) to give a mixture (6.11 g) of tert-butyl 3-(4-{({4′-[2-(ethylamino)ethoxy]-2′,6′-dimethylbiphenyl-3-yl}methyl)[(2-nitrophenyl)sulfonyl]amino}-2-fluorophenyl)propanoate and tributylphosphine oxide as a yellow oil. To a solution of the obtained oil (0.57 g) in pyridine (3 mL) were added 2-methylpropanoyl chloride (0.17 mL, 1.62 mmol) and a small amount of N,N-dimethylpyridine-4-amine under stirring at room temperature, and the mixture was stirred for 1 hr. The reaction mixture was concentrated under reduced pressure, and the residue was partitioned between ethyl acetate and saturated aqueous sodium hydrogencarbonate, and the mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=10/1-hexane/ethyl acetate=2/5) to give the title compound (0.35 g) as a colorless oil.

後処理

  1. stirringthe mixture was stirred for 16 hr
  2. filtrationThe resulting precipitate was filtered off
  3. concentrationthe filtrate was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-41d6d0fbb8914edd8a0dd27c76766340
出典データセット
uspto-grants-2010_08
特許番号
US07786165B2

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