Sodium Carbonate → methyl 5-(7-((1S,2S)-2-fluorocyclopropanecarboxamido)-2,6-naphthyridin-3-yl)-4-methylpicolinate

HRID 468941ノート

反応式

HRID 468941 の反応式
Cl[C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[C:7]([NH:12][C:13]([C@@H:15]3[CH2:17][C@@H:16]3[F:18])=[O:14])[N:8]=[CH:9]2)=[CH:4][N:3]=1.[CH3:19][C:20]1[C:25](B2OC(C)(C)C(C)(C)O2)=[CH:24][N:23]=[C:22]([C:35]([O:37][CH3:38])=[O:36])[CH:21]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(#N)C.C(OCC)(=O)C.CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.Cl[Pd]Cl>[F:18][C@H:16]1[CH2:17][C@H:15]1[C:13]([NH:12][C:7]1[CH:6]=[C:5]2[C:10]([CH:11]=[C:2]([C:25]3[C:20]([CH3:19])=[CH:21][C:22]([C:35]([O:37][CH3:38])=[O:36])=[N:23][CH:24]=3)[N:3]=[CH:4]2)=[CH:9][N:8]=1)=[O:14]

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 67977255Methyl 4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2-carboxylateHCID 86674973(1S,2S)-N-(7-chloro-2,6-naphthyridin-3-yl)-2-fluorocyclopropanecarboxamide

生成物 1

HCID 71115323methyl 5-(7-((1S,2S)-2-fluorocyclopropanecarboxamido)-2,6-naphthyridin-3-yl)-4-methylpicolinate収率 52.4%

試薬・触媒・溶媒 3

HCID 11714597Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II)触媒HCID 6342Acetonitrile溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
130 °C

実験手順

A mixture of (1S,2S)—N-(7-chloro-2,6-naphthyridin-3-yl)-2-fluorocyclopropanecarboxamide (100 mg, 0.376 mmol), methyl 4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (156 mg, 0.565 mmol), bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) (26.6 mg, 0.038 mmol) and saturated aqueous sodium carbonate solution (0.1 mL) in acetonitrile (1 mL) was heated under microwave irradiation (Biotage) at 130° C. for 30 minutes. The reaction mixture was diluted with ethyl acetate (50 mL) and washed with water (20 mL). The organic layer was separated, dried over sodium sulfate, filtered and concentrated in vacuo to provide a residue that was purified by flash chromatography (4 g, Silica, 0-100% ethyl acetate in heptane). Desired fractions were combined and evaporated in vacuo to afford the title compound as a pale yellow solid (75 mg, 52%), which was used in the next step without further purification.

後処理

  1. washwashed with water (20 mL)
  2. customThe organic layer was separated
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customto provide a residue that
  7. customwas purified by flash chromatography (4 g, Silica, 0-100% ethyl acetate in heptane)
  8. customevaporated in vacuo

出典と根拠

ORDレコード
ord-389fa59d88cb47d2b32068322ffc971a
出典データセット
uspto-grants-2014_01
特許番号
US08623889B2

反応ノート

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