Triethylsilane → Methyl 2-[4-([4-(1,1-dioxido-3-oxo-2,3-dihydroisothiazol-5-yl)benzyl]oxymethyl)phenoxy]-6-methoxybenzoate

HRID 724701ノート

反応式

HRID 724701 の反応式
[CH:1]([C:3]1[CH:21]=[CH:20][C:6]([O:7][C:8]2[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[C:9]=2[C:10]([O:12][CH3:13])=[O:11])=[CH:5][CH:4]=1)=[O:2].O[CH2:23][C:24]1[CH:29]=[CH:28][C:27]([C:30]2[S:34](=[O:36])(=[O:35])[NH:33][C:32](=[O:37])[CH:31]=2)=[CH:26][CH:25]=1.C([SiH](CC)CC)C>Cl.O1CCOCC1>[O:35]=[S:34]1(=[O:36])[C:30]([C:27]2[CH:28]=[CH:29][C:24]([CH2:23][O:2][CH2:1][C:3]3[CH:21]=[CH:20][C:6]([O:7][C:8]4[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[C:9]=4[C:10]([O:12][CH3:13])=[O:11])=[CH:5][CH:4]=3)=[CH:25][CH:26]=2)=[CH:31][C:32](=[O:37])[NH:33]1

参加物

6

反応物 3

HCID 12052TriethylsilaneHCID 218788375-[4-(Hydroxymethyl)phenyl]isothiazol-3(2H)-one 1,1-dioxideHCID 21879099Methyl 2-(4-formylphenoxy)-6-methoxybenzoate

生成物 1

HCID 58746605Methyl 2-[4-([4-(1,1-dioxido-3-oxo-2,3-dihydroisothiazol-5-yl)benzyl]oxymethyl)phenoxy]-6-methoxybenzoate収率 6%

試薬・触媒・溶媒 2

HCID 313Hydrochloric Acid溶媒HCID 312751,4-Dioxane溶媒

実験手順

Methyl 2-(4-formylphenoxy)-6-methoxybenzoate (0.071 g, 0.24 mmol) and 5-[4-(hydroxymethyl)phenyl]isothiazol-3(2H)-one 1,1-dioxide (0.050 g, 0.21 mmol) were dissolved in 4 M hydrogen chloride in 1,4-dioxane (2.1 m). The reaction was stirred at ambient temperature for 1.25 h. Triethylsilane (0.13 mL, 0.84 mmol) was added and stirred for 18 h. The reaction was quenched with acetone and evaporated. The product was purified on a 50 mm Luna C18 column using a 20–100% acetonitrile in water gradient with 0.05% trifluoroacetic acid at 30 mL per minute over a 30 minute period. The product was lyophilized to give a white powder (6 mg, 6%). 1H NMR (400 MHz, CDCl3): δ 7.79 (d, J=8.4 Hz, 2H), 7.53 (d, J=8.1 Hz, 2H), 7.32 (m, 2H), 6.71 (s, 1H), 6.69 (d, J=8.5 Hz, 1H), 6.49 (d, J=8.3 Hz, 1H), 4.62 (m, 2H), 4.55 (m, 2H), 3.87 (s, 3H), 3.85 (s, 3H); LCMS found for C26H23NNaO8S (M+Na)+: m/z=532.0.

後処理

  1. stirringstirred for 18 h
  2. customThe reaction was quenched with acetone
  3. customevaporated
  4. customThe product was purified on a 50 mm Luna C18 column
  5. customover a 30 minute

出典と根拠

ORDレコード
ord-114ff7770eb54feca447758c34f78314
出典データセット
uspto-grants-2006_11
特許番号
US07141596B2

反応ノート

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