Hydrochloric Acid → HCID 22738749、化合物

HRID 567325ノート

反応式

HRID 567325 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][N:9]1[C:21]2[CH:20]=[CH:19][CH:18]=[C:17]([OH:22])[C:16]=2[C:15]2[C:10]1=[CH:11][CH:12]=[CH:13][C:14]=2[C:23]([O:25]C)=O.Cl.[OH-].[NH4+:29]>C1COCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][N:9]1[C:21]2[CH:20]=[CH:19][CH:18]=[C:17]([OH:22])[C:16]=2[C:15]2[C:10]1=[CH:11][CH:12]=[CH:13][C:14]=2[C:23](=[O:25])[NH2:29]

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 14923Ammonium HydroxideHCID 227388479-[(2-Chlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

生成物 1

HCID 22738749HCID 22738749、化合物収率 38%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A solution of the 9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole (238 mg, 0.43 mM) in 20 mL THF and 25 mL concentrated aqueous ammonium hydroxide was sonicated for 20 hours at 40-50° C. The mixture was diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. The aqueous layer was extracted twice with ethyl acetate. The combined organic extracts were washed with saturated brine, dried over magnesium sulfate, filtered, and concentrated. The residue was purified by column chromatography on silica gel (elution with gradient methylene chloride/ethyl acetate) to afford 86.9 mg (38%) of the 9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a white solid. 1H NMR (DMSO-d6) δ 10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H), 7.7 (m, 1H), 7.55 (d, 1H, J=8 Hz), 7.45 (m, 2H), 7.3 (m, 2H), 7.15 (t, 1H, J=8 Hz), 6.95 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.2 (d, 1H, J=8 Hz), 5.75 (s, 2H). IR (CHCl3, cm−1) 3500, 3400, 3200 (br), 1649, 1597, 1585, 1446, 1431, 1331, and 1269. MS (ES) m/e 349, 351, 353.

後処理

  1. extractionThe aqueous layer was extracted twice with ethyl acetate
  2. washThe combined organic extracts were washed with saturated brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by column chromatography on silica gel (elution with gradient methylene chloride/ethyl acetate)

出典と根拠

ORDレコード
ord-516bf22d75d849e58310d85f1d18d2fd
出典データセット
uspto-grants-2001_01
特許番号
US06177440B1

反応ノート

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