Ethyl 4-bromobutyrate → Ethyl 4-(((1R)-2-(5-(2-fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-3,6-dihydro-1(2H)-pyrimidinyl)-1-phenylethyl)amino)butanoate

HRID 28495

反応式

HRID 28495 の反応式
[NH2:1][C@H:2]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[CH2:3][N:4]1[C:9](=[O:10])[C:8]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([O:17][CH3:18])[C:12]=2[F:19])=[C:7]([CH3:20])[N:6]([CH2:21][C:22]2[C:27]([C:28]([F:31])([F:30])[F:29])=[CH:26][CH:25]=[CH:24][C:23]=2[F:32])[C:5]1=[O:33].Br[CH2:41][CH2:42][CH2:43][C:44]([O:46][CH2:47][CH3:48])=[O:45].CCN(C(C)C)C(C)C>C(#N)C>[CH2:47]([O:46][C:44]([CH2:43][CH2:42][CH2:41][NH:1][C@H:2]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[CH2:3][N:4]1[C:9](=[O:10])[C:8]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([O:17][CH3:18])[C:12]=2[F:19])=[C:7]([CH3:20])[N:6]([CH2:21][C:22]2[C:27]([C:28]([F:29])([F:31])[F:30])=[CH:26][CH:25]=[CH:24][C:23]=2[F:32])[C:5]1=[O:33])=[O:45])[CH3:48]

参加物

5

反応物 3

HCID 76300Ethyl 4-bromobutyrateHCID 81531DiisopropylethylamineHCID 114214123-((R)-2-Amino-2-phenylethyl)-5-(2-fluoro-3-methoxyphenyl)-1-(2-fluoro-6-trifluoromethylbenzyl)-6-methyl-1H-pyrimidine-2,4-dione

生成物 1

HCID 67105103Ethyl 4-(((1R)-2-(5-(2-fluoro-3-methoxyphenyl)-3-(2-fluoro-6-(trifluoromethyl)benzyl)-4-methyl-2,6-dioxo-3,6-dihydro-1(2H)-pyrimidinyl)-1-phenylethyl)amino)butanoate収率 49.5%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
95 °C

実験手順

To compound 3-[2(R)-amino-2-phenylethyl]-5-(2-fluoro-3-methoxyphenyl)-1-[2-fluoro-6-trifluoromethyl)benzyl]-6-methyl-pyrimidine-2,4(1H,3H)-dione 1f (5 g, 9.4 mmol) in 100 mL of acetonitrile were added ethyl 4-bromobutyrate (4 mL, 28.2 mmol) and Hunig's base (1.6 mL, 9.4 mmol). After reflux at 95° C. overnight, the reaction mixture was cooled to ambient temperature and the volatiles were removed. The residue was chromatographed with 10:10:1 EtOAc/Hexane/Et3N to give 1g as a yellow oil (3.0 g, 4.65 mmol). MS (CI) m/z 646.2 (MH+).

後処理

  1. temperaturethe reaction mixture was cooled to ambient temperature
  2. customthe volatiles were removed
  3. customThe residue was chromatographed with 10:10:1 EtOAc/Hexane/Et3N

出典と根拠

ORDレコード
ord-847885635b274b23b9b096fc87af6cc5
出典データセット
uspto-grants-2008_09
特許番号
US07419983B2

関連ノート

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