Hydrochloric Acid → 1-Benzyl-3-(2-dimethylamino-pyrimidin-5-yl)-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

HRID 1410927ノート

反応式

HRID 1410927 の反応式
[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:24])=[C:7]2[C:12](=[CH:13][N:14]=1)[N:11]([CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10](=[O:22])[C:9](Br)=[CH:8]2)=[O:4].[CH3:25][N:26]([CH3:36])[C:27]1[N:32]=[CH:31][C:30](B(O)O)=[CH:29][N:28]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].O.COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1.Cl>C1(C)C=CC=CC=1.[Cl-].[Na+].O.CC([O-])=O.CC([O-])=O.[Pd+2].CCOC(C)=O>[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:24])=[C:7]2[C:12](=[CH:13][N:14]=1)[N:11]([CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10](=[O:22])[C:9]([C:30]1[CH:29]=[N:28][C:27]([N:26]([CH3:36])[CH3:25])=[N:32][CH:31]=1)=[CH:8]2)=[O:4]

参加物

11

反応物 6

HCID 313Hydrochloric AcidHCID 962WaterHCID 62657Potassium Phosphate, TribasicHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 45088929[2-(Dimethylamino)pyrimidin-5-yl]boronic acidHCID 682974771-Benzyl-3-bromo-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

生成物 1

HCID 682974441-Benzyl-3-(2-dimethylamino-pyrimidin-5-yl)-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester収率 32%

試薬・触媒・溶媒 4

HCID 167845palladium(II) acetate触媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒HCID 57417360Sodium chloride; water溶媒

反応条件

温度
105 °C

実験手順

A mixture of 1-benzyl-3-bromo-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (80 mg, 0.21 mmol), 2-dimethylaminopyrimidine-5-boronic acid (52 mg, 0.31 mmol), K3PO4 (87 mg, 0.41 mmol), H2O (7.4 mg, 0.41 mmol), SPhos (4.2 mg, 0.010 mmol) and Pd(OAc)2 (4.2 mg, 0.0062 mmol) in toluene (5 mL) was heated at 105° C. under nitrogen atmosphere for 16 h. After the mixture was cooled to r.t., brine (10 mL) and EtOAc (20 mL) were added. 1 M HCl was added with stirring until pH was about 3-4, and the organic layer was dried over MgSO4 and concentrated. The crude product was purified by silica gel chromatography (10-100% EtOAc/hexanes+2% AcOH) to give 29 mg of the title compound as a bright yellow solid. MS: (+) m/z 432.29 (M+1).

後処理

  1. temperatureAfter the mixture was cooled to r.t.
  2. dry with materialthe organic layer was dried over MgSO4
  3. concentrationconcentrated
  4. customThe crude product was purified by silica gel chromatography (10-100% EtOAc/hexanes+2% AcOH)

出典と根拠

ORDレコード
ord-f24f0031fab045d7b3cf6a765e111d9a
出典データセット
uspto-grants-2014_12
特許番号
US08921389B2

反応ノート

読み込み中…