Cesium fluoride → 1-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-4-methyl-3-(5 (5-pyrimidinyl)-2-thienylmethyl)benzene

HRID 221006ノート

反応式

HRID 221006 の反応式
[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([CH3:30])=[C:26]([CH2:31][C:32]2[S:33][C:34](Cl)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2].C([Sn](CCCC)(CCCC)[C:43]1[CH:44]=[N:45][CH:46]=[N:47][CH:48]=1)CCC.C(P(C(C)(C)C)C(C)(C)C)(C)(C)C.F[B-](F)(F)F.[H+].[F-].[Cs+]>O1CCOCC1.[Pd].[Pd].C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1.C(=CC(C=CC1C=CC=CC=1)=O)C1C=CC=CC=1>[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([CH3:30])=[C:26]([CH2:31][C:32]2[S:33][C:34]([C:43]3[CH:44]=[N:45][CH:46]=[N:47][CH:48]=3)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2]

参加物

7

反応物 4

HCID 25953Cesium fluorideHCID 27632495-(Tributylstannyl)pyrimidineHCID 666076841-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-3-(5-chloro-2-thienylmethyl)-4-methylbenzeneHCID 118705180Tris(tert-butyl)phosphonium tetrafluoroborate

生成物 1

HCID 666072621-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-4-methyl-3-(5 (5-pyrimidinyl)-2-thienylmethyl)benzene収率 41.1%

試薬・触媒・溶媒 2

HCID 9832798Tris(dibenzylideneacetone) dipalladium触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

A mixed solution of 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3-(5-chloro-2-thienylmethyl)-4-methylbenzene 57 (600 mg) obtained in Example 120-(1), tri-n-butyl(5-pyrimidinyl)tin (600 mg), tri-tert-butylphosphine•tetrafluoroboric acid adduct (116 mg), cesium fluoride (414 mg), and tris(dibenzylideneacetone) dipalladium (0) (91 mg) in 1,4-dioxane (18 ml) was heated under reflux at 100° C. for 3 hours under argon atmosphere. Insoluble materials were filtered off, and the filtrate was diluted with ethyl acetate and washed with brine. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=75:25-40:60) to give 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-methyl-3-(5-(5-pyrimidinyl)-2-thienylmethyl)benzene (266 mg) as colorless crystals. APCI-Mass m/Z 597 (M+H). (2) The above 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-methyl-3-(5-(5-pyrimidinyl)-2-thienylmethyl)benzene was used and treated in a manner similar to Example 106-(3) to give the target compound as colorless powder. APCI-Mass m/Z 429 (M+H).

後処理

  1. filtrationInsoluble materials were filtered off
  2. additionthe filtrate was diluted with ethyl acetate
  3. washwashed with brine
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=75:25-40:60)

出典と根拠

ORDレコード
ord-ca14046bdc564cb281aabe5ce6bb99ea
出典データセット
uspto-grants-2012_06
特許番号
US08202984B2

反応ノート

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