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Dimethylformamide → (S)-4-(2'-amino-7-(pyrimidin-5-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-3-yl)-2-methylbut-3-yn-2-ol

HRID 335765
ノート
印刷プレビュー

反応式

HRID 335765 の反応式
Br[C:2]1[CH:3]=[C:4]2[C@:15]3([CH2:19][O:18][C:17]([NH2:20])=[N:16]3)[C:14]3[C:9](=[CH:10][CH:11]=[C:12]([C:21]4[CH:22]=[N:23][CH:24]=[N:25][CH:26]=4)[CH:13]=3)[O:8][C:5]2=[N:6][CH:7]=1.C1COCC1.CN(C=O)C.[CH3:37][C:38]([OH:42])([C:40]#[CH:41])[CH3:39]>O.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.[Cu]I>[NH2:20][C:17]1[O:18][CH2:19][C@:15]2([C:4]3[C:5](=[N:6][CH:7]=[C:2]([C:41]#[C:40][C:38]([CH3:39])([OH:42])[CH3:37])[CH:3]=3)[O:8][C:9]3[C:14]2=[CH:13][C:12]([C:21]2[CH:22]=[N:23][CH:24]=[N:25][CH:26]=2)=[CH:11][CH:10]=3)[N:16]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 6228DimethylformamideHCID 8028TetrahydrofuranHCID 82582-Methyl-3-butyn-2-olHCID 67241433(S)-3-bromo-7-(pyrimidin-5-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazol]-2'-amine

生成物 1

HCID 67383136(S)-4-(2'-amino-7-(pyrimidin-5-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-oxazole]-3-yl)-2-methylbut-3-yn-2-ol

試薬・触媒・溶媒 3

HCID 24350
Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
触媒
HCID 178418397HCID 178418397、化合物触媒
HCID 962Water溶媒

反応条件

温度
110 °C

実験手順

Combined (S)-3-bromo-7-(pyrimidin-5-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazol]-2′-amine (99 mg, 0.242 mmol), tetrakis(triphenylphosphine)palladium (28.0 mg, 0.024 mmol), copper(i) iodide (4.61 mg, 0.024 mmol) and THF (969 μL, 0.242 mmol) and DMF (969 μL, 0.242 mmol). Added DIPA (679 μL, 4.85 mmol) then 2-methylbut-3-yn-2-ol (118 μL, 1.211 mmol) and flushed the reaction tube with argon. Sealed and heated at 110° C. for 2 hours. The mixture was diluted with water and extracted with EtOAc (3×). The combined organic extracts were dried over sodium sulfate, filtered, and evaporated. The residue was purified by chromatography on a 25-g SNAP column, eluting with 0-100% of a 90:10:1 mixture of DCM/MeOH/NH4OH to give (S)-4-(2′-amino-7-(pyrimidin-5-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazole]-3-yl)-2-methylbut-3-yn-2-ol as a white solid after evaporation from DCM/hexane.

後処理

  1. customSealed
  2. extractionextracted with EtOAc (3×)
  3. dry with materialThe combined organic extracts were dried over sodium sulfate
  4. filtrationfiltered
  5. customevaporated
  6. customThe residue was purified by chromatography on a 25-g SNAP column
  7. washeluting with 0-100% of a 90:10:1 mixture of DCM/MeOH/NH4OH

出典と根拠

ORDレコード
ord-cdd213f431204c14869100646154b81d
出典データセット
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08883782B2

反応ノート

読み込み中…

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