Potassium Hydroxide → 5-(3-fluoro-4-methoxyphenethyl)-8-chloro-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole

HRID 574481

反応式

HRID 574481 の反応式
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH2:11][CH2:12][N:13]([CH3:15])[CH2:14][C:5]=3[C:4]=2[CH:3]=1.[OH-].[K+].Br[CH2:19][CH2:20][C:21]1[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[C:23]([F:29])[CH:22]=1>CN1CCCC1=O.O>[F:29][C:23]1[CH:22]=[C:21]([CH:26]=[CH:25][C:24]=1[O:27][CH3:28])[CH2:20][CH2:19][N:7]1[C:8]2[CH:9]=[CH:10][C:2]([Cl:1])=[CH:3][C:4]=2[C:5]2[CH2:14][N:13]([CH3:15])[CH2:12][CH2:11][C:6]1=2

参加物

6

反応物 3

HCID 14797Potassium HydroxideHCID 196158-chloro-2-methyl-1H,2H,3H,4H,5H-pyrido(4,3-b)indoleHCID 534041114-(2-Bromoethyl)-2-fluoro-1-methoxybenzene

生成物 1

HCID 578761815-(3-fluoro-4-methoxyphenethyl)-8-chloro-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole収率 4.6%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 13387N-methyl-2-pyrrolidone溶媒

反応条件

温度
100 °C

実験手順

8-Chloro-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (0.5 g, 0.0022 mol) was dissolved in N-methyl 2-pyrolidone (4.0 mL). Powdered potassium hydroxide (1 g, 0.008 mol) was added and heated at 100° C. for 2 h. 4-(2-Bromo-ethyl)-2-fluoro-1-methoxy-benzene (0.520 g, 0.0022 mol) was added at the room temperature and stir for 0.5 h at RT (TLC showed incomplete reaction). Reaction mixture was diluted with water (200 mL) and extracted with ethyl acetate (3×100 mL). Organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure using rotary evaporator. The crude was purified through column chromatography (4% MeOH:DCM in silica 100-200 mesh, Diameter of column—2.5 cm, Height of silica—approx. 5 inch) to provide the desired compound as light yellow oil (0.038 g, 4% yield). 8-Chloro-5-[2-(3-fluoro-4-methoxy-phenyl)-ethyl]-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (0.038 g, 0.00010 mol) was dissolved in THF (1.0 mL). A solution of oxalic acid dihydrate (0.012 g, 0.00010 mol) in THF (1.0 mL) was added and stirred for 30 min at RT. The precipitate was filtered and dried to give oxalate salt as off white solid (0.016 g, 34% yield).

後処理

  1. custom(TLC showed incomplete reaction)
  2. customReaction mixture
  3. extractionextracted with ethyl acetate (3×100 mL)
  4. dry with materialOrganic layer was dried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customevaporator
  7. customThe crude was purified through column chromatography (4% MeOH:DCM in silica 100-200 mesh, Diameter of column—2.5 cm, Height of silica—approx. 5 inch)

出典と根拠

ORDレコード
ord-c3b1ec380c164da885a4726a5cc8248c
出典データセット
uspto-grants-2015_05
特許番号
US09034880B2

関連ノート

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