Dimethylformamide → (S)-7-(5-chloro-2-fluorophenyl)-3-(3,6-dihydro-2H-pyran-4-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazol]-2'-amine

HRID 335810ノート

反応式

HRID 335810 の反応式
FC(F)(F)S(O[C:7]1[CH:8]=[C:9]2[C@@:20]3([CH2:24][O:23][C:22]([NH2:25])=[N:21]3)[C:19]3[C:14](=[N:15][CH:16]=[C:17]([C:26]4[CH2:27][CH2:28][O:29][CH2:30][CH:31]=4)[CH:18]=3)[O:13][C:10]2=[CH:11][CH:12]=1)(=O)=O.[Cl:34][C:35]1[CH:36]=[CH:37][C:38]([F:44])=[C:39](B(O)O)[CH:40]=1.CN(C=O)C.C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:34][C:35]1[CH:40]=[CH:39][C:38]([F:44])=[C:37]([C:7]2[CH:8]=[C:9]3[C@@:20]4([CH2:24][O:23][C:22]([NH2:25])=[N:21]4)[C:19]4[C:14](=[N:15][CH:16]=[C:17]([C:26]5[CH2:27][CH2:28][O:29][CH2:30][CH:31]=5)[CH:18]=4)[O:13][C:10]3=[CH:11][CH:12]=2)[CH:36]=1

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 3718925(5-Chloro-2-fluoro-phenyl)boronic acidHCID 86640741(S)-2'-amino-3-(3,6-dihydro-2H-pyran-4-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-7-yl trifluoromethanesulfonate

生成物 1

HCID 45257008(S)-7-(5-chloro-2-fluorophenyl)-3-(3,6-dihydro-2H-pyran-4-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazol]-2'-amine

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
70 °C

実験手順

A vial was charged with (S)-2′-amino-3-(3,6-dihydro-2H-pyran-4-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazole]-7-yl trifluoromethanesulfonate (0.050 g, 0.103 mmol), 5-chloro-2-fluorophenylboronic acid (0.054 g, 0.310 mmol), and Pd(PPh3)4 (5.97 mg, 5.17 μmol). The vial was purged with Ar (g). Then, DMF (0.517 mL) and potassium carbonate (0.259 mL, 0.517 mmol) (as a 2.0 M aq. solution) were added in sequence. The vial was sealed and stirred at 70° C. for one hour. The reaction was diluted with ethyl acetate and washed with water. The aqueous layer was extracted with ethyl acetate, and the combined organic layers were dried with sodium sulfate, filtered, and concentrated. The material was purified via column chromatography (RediSep 40 g, gradient elution 0-7% MeOH in DCM) to afford (S)-7-(5-chloro-2-fluorophenyl)-3-(3,6-dihydro-2H-pyran-4-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazol]-2′-amine as a white solid. Found MS: MH+=464.

後処理

  1. customThe vial was purged with Ar (g)
  2. customThe vial was sealed
  3. washwashed with water
  4. extractionThe aqueous layer was extracted with ethyl acetate
  5. dry with materialthe combined organic layers were dried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe material was purified via column chromatography (RediSep 40 g, gradient elution 0-7% MeOH in DCM)

出典と根拠

ORDレコード
ord-d3de30e27e4d4fe9bd1e102dcb5a3a86
出典データセット
uspto-grants-2014_11
特許番号
US08883782B2

反応ノート

読み込み中…