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Sodium ethoxide → cis-N-{3-[1-(4-chloro-benzyl)-4-hydroxy-2-oxo-2,4a,5,6,7,7a-hexahydro-1H-[1]pyrindin-3-yl]-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide

HRID 731385
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HRID 731385 반응식
C([O:3][C:4]([CH:6]1[CH2:10][CH2:9][CH2:8][CH:7]1[N:11]([CH2:32][C:33]1[CH:38]=[CH:37][C:36]([Cl:39])=[CH:35][CH:34]=1)[C:12](=[O:31])[CH2:13][C:14]1[NH:19][C:18]2[CH:20]=[CH:21][C:22]([NH:24][S:25]([CH3:28])(=[O:27])=[O:26])=[CH:23][C:17]=2[S:16](=[O:30])(=[O:29])[N:15]=1)=O)C.[O-]CC.[Na+]>C(O)C>[Cl:39][C:36]1[CH:37]=[CH:38][C:33]([CH2:32][N:11]2[C@@H:7]3[C@@H:6]([CH2:10][CH2:9][CH2:8]3)[C:4]([OH:3])=[C:13]([C:14]3[NH:19][C:18]4[CH:20]=[CH:21][C:22]([NH:24][S:25]([CH3:28])(=[O:26])=[O:27])=[CH:23][C:17]=4[S:16](=[O:30])(=[O:29])[N:15]=3)[C:12]2=[O:31])=[CH:34][CH:35]=1
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4

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HCID 2723922Sodium ethoxideHCID 576711922-{(4-Chloro-benzyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentanecarboxylic acid ethyl ester

생성물 1

HCID 137194589cis-N-{3-[1-(4-chloro-benzyl)-4-hydroxy-2-oxo-2,4a,5,6,7,7a-hexahydro-1H-[1]pyrindin-3-yl]-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide수율 26.2%

시약·촉매·용매 1

HCID 702
Ethanol
용매
2회

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온도
60 °C

실험 절차

A solution of the crude 2-{(4-chloro-benzyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentanecarboxylic acid ethyl ester in ethanol (20 mL) was treated with a 21% w/w solution of sodium ethoxide in ethanol (0.648 g) 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 prep-HPLC [Column ODS-A 5μ 100 Å, 150×21.2 mm, 5 micron, 50%-100% in 13.5 min @ 22 mL/min flow rate, 0.05% trifluoroacetic acid in acetonitrile/0.05% trifluoroacetic acid in water] to afford the desired product, cis-N-{3-[1-(4-chloro-benzyl)-4-hydroxy-2-oxo-2,4a,5,6,7,7a-hexahydro-1H-[1]pyrindin-3-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide (72.1 mg, 0.131 mmol, 26.2% over two steps), as a white solid. 1H NMR (400 MHz, DMSO-d6) δ: 1.44-1.62 (4H, m), 1.91-2.18 (3H, m), 3.06 (3H, s), 3.78-3.94 (1H, m), 4.39-4.62 (1H, m), 4.90 (1H, d, J=15.6 Hz), 7.35-7.64 (7H, m), 10.19 (1H, s). LC-MS (ESI) calcd for C23H23ClN4O6S2 550.07, found 551.4 [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 prep-HPLC [Column ODS-A 5μ 100 Å, 150×21.2 mm, 5 micron, 50%-100% in 13.5 min @ 22 mL/min flow rate, 0.05% trifluoroacetic acid in acetonitrile/0.05% trifluoroacetic acid in water]

출처 및 근거

ORD 기록
ord-f1e95964208544f2a775da20387136d6
출처 데이터셋
uspto-grants-2009_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07582626B2

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