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Hydrochloric Acid → 4-{[4-(5-Chloro-2-methoxy-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-benzoic acid

HRID 1360233
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HRID 1360233 반응식
C([O:3][C:4](=[O:36])[C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]([C:14]2[CH:15]=[CH:16][C:17]3[O:22][CH2:21][CH2:20][N:19]([S:23]([C:26]4[CH:31]=[C:30]([Cl:32])[CH:29]=[CH:28][C:27]=4[O:33][CH3:34])(=[O:25])=[O:24])[C:18]=3[CH:35]=2)=[O:13])=[CH:7][CH:6]=1)C.[OH-].[Na+].Cl>O1CCCC1.CO>[Cl:32][C:30]1[CH:29]=[CH:28][C:27]([O:33][CH3:34])=[C:26]([S:23]([N:19]2[C:18]3[CH:35]=[C:14]([C:12]([NH:11][C:8]4[CH:9]=[CH:10][C:5]([C:4]([OH:36])=[O:3])=[CH:6][CH:7]=4)=[O:13])[CH:15]=[CH:16][C:17]=3[O:22][CH2:21][CH2:20]2)(=[O:25])=[O:24])[CH:31]=1
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참가 물질

6

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 469019604-{[4-(5-chloro-2-methoxy-benzene-sulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-benzoic acid ethyl ester

생성물 1

HCID 250937744-{[4-(5-Chloro-2-methoxy-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-benzoic acid

시약·촉매·용매 2

HCID 887
Methanol
용매
HCID 8028Tetrahydrofuran용매

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온도
45 °C

실험 절차

A solution of 4-{[4-(5-chloro-2-methoxy-benzenesulfonyl)-3,4-dihydro-2H-benzo-[1,4]oxazine-6-carbonyl]-amino}-benzoic acid ethyl ester (0.91 g, 1.72 mmol) in tetrahydrofuran (10 mL) and methanol (10 mL) was treated with 3N NaOH (5 mL, 15 mmol, 8.7 equiv.). The mixture was stirred at 45° C. for 30′. The mixture was then acidified with HCl 3N (5 mL) and the solid which precipitated was filtered, washing with water, and dried under high vacuum. 4-{[4-(5-Chloro-2-methoxy-benzenesulfonyl)-3,4-dihydro-2H-benzo[1,4]oxazine-6-carbonyl]-amino}-benzoic acid was obtained as a white solid, 0.85 g (98%). MS (ISP): m/e=501.0 (M−H); δH (300 MHz; d6-DMSO) 12.65 (1H, s), 10.35 (1H, s), 8.05 (1H, d), 7.81-7.88 (5H, m), 7.66-7.71 (2H, m), 7.19 (1H, d), 6.98 (1H, d), 3.96 (2H, m), 3.85 (2H, m), 3.53 (3H, s).

후처리

  1. customthe solid which precipitated
  2. filtrationwas filtered
  3. washwashing with water
  4. customdried under high vacuum

출처 및 근거

ORD 기록
ord-94fc4b757b4845c9bfda1895ac5cfa45
출처 데이터셋
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07879845B2

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