Hydrochloric Acid → 4-(3-ethoxy-4-hydroxy-5-nitrophenyl)-6-(4-methoxyphenyl)-5-phenyl-3,4-dihydropyrimidin-2(1H)-one

HRID 2177882

反応式

HRID 2177882 の反応式
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9](=O)[CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)=[CH:5][CH:4]=1.[CH2:18]([O:20][C:21]1[CH:22]=[C:23]([CH:26]=[C:27]([N+:30]([O-:32])=[O:31])[C:28]=1[OH:29])[CH:24]=O)[CH3:19].[NH2:33][C:34]([NH2:36])=[O:35].Cl>CCO.CO.CCOC(C)=O>[CH2:18]([O:20][C:21]1[CH:22]=[C:23]([CH:24]2[C:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)=[C:9]([C:6]3[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[CH:4][CH:5]=3)[NH:36][C:34](=[O:35])[NH:33]2)[CH:26]=[C:27]([N+:30]([O-:32])=[O:31])[C:28]=1[OH:29])[CH3:19]

参加物

8

反応物 4

HCID 313Hydrochloric AcidHCID 1176UreaHCID 2310931-(4-Methoxyphenyl)-2-phenylethan-1-oneHCID 5848783-Ethoxy-4-hydroxy-5-nitrobenzaldehyde

生成物 1

HCID 668259394-(3-ethoxy-4-hydroxy-5-nitrophenyl)-6-(4-methoxyphenyl)-5-phenyl-3,4-dihydropyrimidin-2(1H)-one収率 7.5%

試薬・触媒・溶媒 3

HCID 702Ethanol溶媒HCID 887Methanol溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a mixture of 1-(4-methoxyphenyl)-2-phenylethanone (200 mg, 0.88 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (187 mg, 0.89 mmol), and urea (159 mg, 2.65 mmol) in anhydrous EtOH (20 mL) was added concentrated HCl solution (0.1 mL). The reaction mixture was refluxed for two days. When TLC (EtOAc:MeOH=10:1) showed that about 30% of the starting materials were consumed, the reaction mixture was concentrated. The residue was purified by column chromatography (EtOAc:MeOH=40:1) and preparative HPLC to afford Compound 20 as a yellow solid (30 mg, yield: 7.5%). 1H NMR (DMSO-d6 300 MHz): δ 10.30 (s, 1H), 8.65 (s, 1H), 7.52 (s, 1H), 7.45 (s, 1H), 7.20 (s, 1H), 7.09-7.15 (m, 2H), 6.96-7.08 (m, 3H), 6.75-6.82 (m, 4H), 5.12 (s, 1H), 4.00-4.10 (m, 2H), 3.70 (s, 3H), 1.34 (t, J=6.9 Hz, 3H); MS (ESI): m/z 462.0 [M+1]+.

後処理

  1. temperatureThe reaction mixture was refluxed for two days
  2. customwere consumed
  3. concentrationthe reaction mixture was concentrated
  4. customThe residue was purified by column chromatography (EtOAc:MeOH=40:1) and preparative HPLC

出典と根拠

ORDレコード
ord-2c9d4f94106e46c4aea24cd3323fee59
出典データセット
uspto-grants-2015_06
特許番号
US09067893B2

関連ノート

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