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Ammonium Chloride → Carbamic acid, N-[4-chloro-5-[[5-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]hydroxymethyl]-2-thiazolyl]-, 1,1-dimethylethyl ester

HRID 1256814
ノート
印刷プレビュー

反応式

HRID 1256814 の反応式
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([Cl:19])[CH:18]=[C:13]3[C:12](I)=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([Mg]Cl)(C)C.[C:26]([O:30][C:31](=[O:41])[NH:32][C:33]1[S:34][C:35]([CH:39]=[O:40])=[C:36]([Cl:38])[N:37]=1)([CH3:29])([CH3:28])[CH3:27].[Cl-].[NH4+]>O1CCCC1>[C:26]([O:30][C:31](=[O:41])[NH:32][C:33]1[S:34][C:35]([CH:39]([C:12]2[C:13]3[C:14](=[N:15][CH:16]=[C:17]([Cl:19])[CH:18]=3)[N:10]([S:7]([C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)(=[O:9])=[O:8])[CH:11]=2)[OH:40])=[C:36]([Cl:38])[N:37]=1)([CH3:29])([CH3:27])[CH3:28]
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

6

反応物 4

HCID 25517Ammonium ChlorideHCID 242292391-Benzenesulfonyl-5-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridineHCID 45117878Tert-butyl (4-chloro-5-formylthiazol-2-yl)carbamate2 回HCID 178418918HCID 178418918、化合物2 回

生成物 1

HCID 57619425Carbamic acid, N-[4-chloro-5-[[5-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]hydroxymethyl]-2-thiazolyl]-, 1,1-dimethylethyl ester
収率 60.3%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-25 °C

実験手順

To a solution of 1-benzenesulfonyl-5-chloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (581, 4.40 g, 10.5 mmol) in tetrahydrofuran (30.0 mL) at −45° C. under nitrogen, a solution of isopropylmagnesium chloride (2.0 M in tetrahydrofuran, 5.4 mL) was added slowly over 10 minutes. The reaction was allowed to warm to −25° C. over 30 minutes. The reaction was cooled to −65° C., followed by adding the cold deprotonated (4-chloro-5-formyl-thiazol-2-yl)-carbamic acid tert-butyl ester 589, which was prepared in situ by adding isopropylmagnesium chloride (2.0 M in tetrahydrofuran, 5.0 mL) to (4-chloro-5-formyl-thiazol-2-yl)-carbamic acid tert-butyl ester (589, 2.51 g, 9.55 mmol) in tetrahydrofuran (23.0 mL) at −78° C. under an atmosphere of nitrogen. The reaction was allowed to warm to room temperature in 2 hours, then poured into aqueous ammonium chloride, and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 25% to 100% ethyl acetate in hexane to give the desired compound (590, 3.70 g, 60.3%). MS (ESI) [M+H+]+=554.2.

後処理

  1. temperatureThe reaction was cooled to −65° C.
  2. customwas prepared in situ
  3. temperatureto warm to room temperature in 2 hours
  4. extractionextracted with ethyl acetate
  5. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated
  8. custompurified by silica gel column chromatography
  9. washeluting with 25% to 100% ethyl acetate in hexane

出典と根拠

ORDレコード
ord-c358cc4be3094e6aa1007f015d5c3b92
出典データセット
uspto-grants-2013_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08461169B2

反応ノート

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