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Hydrochloric Acid → (R)-1-(5-(3-(2-methylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol

HRID 534122
ノート
印刷プレビュー

反応式

HRID 534122 の反応式
CC1(C)[O:6][C@H:5]([C:7]2[N:11]=[C:10]([NH:12][C:13]3[C:18]([O:19][C:20]4[C:21]([CH3:26])=[N:22][CH:23]=[CH:24][CH:25]=4)=[CH:17][C:16]([S:27][C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=4)=[CH:15][N:14]=3)[S:9][N:8]=2)[CH2:4][O:3]1.Cl>C(O)C>[CH3:26][C:21]1[C:20]([O:19][C:18]2[C:13]([NH:12][C:10]3[S:9][N:8]=[C:7]([C@@H:5]([OH:6])[CH2:4][OH:3])[N:11]=3)=[N:14][CH:15]=[C:16]([S:27][C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=3)[CH:17]=2)=[CH:25][CH:24]=[CH:23][N:22]=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

4

反応物 2

HCID 313Hydrochloric AcidHCID 68477969(R)-3-(2,2-dimethyl-1,3-dioxolan-4-yl)-N-(3-(2-methylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-1,2,4-thiadiazol-5-amine

生成物 1

HCID 25235319(R)-1-(5-(3-(2-methylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol収率 82.4%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
70 °C

実験手順

A flask was charged with (R)-3-(2,2-dimethyl-1,3-dioxolan-4-yl)-N-(3-(2-methylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-1,2,4-thiadiazol-5-amine (3.8 g, 7.683 mmol) and added ethanol (40 mL). 3M HCl (5.122 ml, 15.37 mmol) was added, and the reaction was heated to 70° C. for 1 hour, then cooled to ambient temperature. The ethanol removed in vacuo and saturated sodium bicarbonate solution was added. The aqueous layer was extracted with ethyl acetate. The majority of product crashed out of the aqueous layer and collected by filtration. The solids and residue from organic layer were purified over silica get (10-15% methanol in ethyl acetate) to afford (R)-1-(5-(3-(2-methylpyridin-3-yloxy)-5-(pyridin-2-ylthio)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol (2.877 g, 6.330 mmol, 82.38% yield) as yellow solid. Mass Spectrum (apci) m/z=455.1 (M+H).

後処理

  1. temperaturecooled to ambient temperature
  2. customThe ethanol removed in vacuo and saturated sodium bicarbonate solution
  3. additionwas added
  4. extractionThe aqueous layer was extracted with ethyl acetate
  5. filtrationcollected by filtration
  6. customThe solids and residue from organic layer were purified over silica
  7. customget (10-15% methanol in ethyl acetate)

出典と根拠

ORDレコード
ord-54aba4eb84564f11bdecce07ddd8a9a2
出典データセット
uspto-grants-2014_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08853409B2

反応ノート

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