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Sodium ethoxide → 1-[(4-fluorophenyl)methyl]-4-hydroxy-3-(7-iodo-1,1-dioxo-4H-1$l^{6},2,4-benzothiadiazin-3-yl)-4a,5,6,7,8,8a-hexahydroquinolin-2-one

HRID 731365
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HRID 731365 반응식
C([O:3][C:4]([CH:6]1[CH2:11][CH2:10][CH2:9][CH2:8][CH:7]1[N:12]([CH2:29][C:30]1[CH:35]=[CH:34][C:33]([F:36])=[CH:32][CH:31]=1)[C:13](=[O:28])[CH2:14][C:15]1[NH:20][C:19]2[CH:21]=[CH:22][C:23]([I:25])=[CH:24][C:18]=2[S:17](=[O:27])(=[O:26])[N:16]=1)=O)C.[O-]CC.[Na+]>C(O)C>[F:36][C:33]1[CH:34]=[CH:35][C:30]([CH2:29][N:12]2[CH:7]3[CH:6]([CH2:11][CH2:10][CH2:9][CH2:8]3)[C:4]([OH:3])=[C:14]([C:15]3[NH:20][C:19]4[CH:21]=[CH:22][C:23]([I:25])=[CH:24][C:18]=4[S:17](=[O:26])(=[O:27])[N:16]=3)[C:13]2=[O:28])=[CH:31][CH:32]=1
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HCID 2723922Sodium ethoxideHCID 576712042-{(4-Fluoro-benzyl)-[2-(7-iodo-1,1-dioxo-1,4-dihydro-1lambda6 benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclohexanecarboxylic acid ethyl ester

생성물 1

HCID 1359557921-[(4-fluorophenyl)methyl]-4-hydroxy-3-(7-iodo-1,1-dioxo-4H-1$l^{6},2,4-benzothiadiazin-3-yl)-4a,5,6,7,8,8a-hexahydroquinolin-2-one수율 12.4%

시약·촉매·용매 1

HCID 702Ethanol용매2회

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온도
60 °C

실험 절차

A solution of the crude 2-{(4-fluoro-benzyl)-[2-(7-iodo-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclohexanecarboxylic acid ethyl ester in ethanol (20 mL) was treated with a 21% w/w solution of sodium ethoxide in ethanol (9.28 g, 28.64 mmol) and stirred for 16 h at 60° C. Upon cooling, the reaction mixture was then quenched with 1.0 M aqueous hydrochloric acid solution (20 mL) and extracted with ethyl acetate (2×50 mL). The combined organic layers were washed with saturated aqueous sodium bicarbonate solution, dried over sodium sulfate, filtered, and dried in vacuo. The residue was purified by flash column chromatography (Teledyne Isco RediSep Column; 0-50% ethyl acetate in hexanes) to afford the desired product, 1-(4-fluoro-benzyl)-4-hydroxy-3-(7-iodo-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-4a,5,6,7,8,8a-hexahydro-1H-quinolin-2-one (516 mg, 0.888 mmol, 12.4% over two steps), as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ: 1.07-1.81 (8H, m), 2.21-2.34 (1H, m), 3.50-5.03 (3H, m), 7.11-8.03 (7H, m). LC-MS (ESI) calcd for C23H21FIN3O4S 581.03, found 582.1 [M+H+].

후처리

  1. temperatureUpon cooling
  2. customthe reaction mixture was then quenched with 1.0 M aqueous hydrochloric acid solution (20 mL)
  3. extractionextracted with ethyl acetate (2×50 mL)
  4. washThe combined organic layers were washed with saturated aqueous sodium bicarbonate solution
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customdried in vacuo
  8. customThe residue was purified by flash column chromatography (Teledyne Isco RediSep Column; 0-50% ethyl acetate in hexanes)

출처 및 근거

ORD 기록
ord-bd4ce126606c4bbf8d7043e9608da77c
출처 데이터셋
uspto-grants-2009_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07582626B2

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