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ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-1-carboxylate → ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-9H-pyrido[3,4-b]indole-1-carboxylate

HRID 2361403
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Reaktionsgleichung

Reaktionsgleichung von HRID 2361403
[CH2:1]([O:8][C:9]([NH:11][C:12]1[C:13]([CH3:38])=[C:14]([CH:18]2[C:30]3[C:29]4[C:24](=[CH:25][C:26]([Br:31])=[CH:27][CH:28]=4)[NH:23][C:22]=3[CH:21]([C:32]([O:34][CH2:35][CH3:36])=[O:33])[NH:20][CH:19]2[CH3:37])[CH:15]=[CH:16][CH:17]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>[Pd].C1(C)C(C)=CC=CC=1.C(OCC)(=O)C>[CH2:1]([O:8][C:9]([NH:11][C:12]1[C:13]([CH3:38])=[C:14]([C:18]2[C:30]3[C:29]4[C:24](=[CH:25][C:26]([Br:31])=[CH:27][CH:28]=4)[NH:23][C:22]=3[C:21]([C:32]([O:34][CH2:35][CH3:36])=[O:33])=[N:20][C:19]=2[CH3:37])[CH:15]=[CH:16][CH:17]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
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Komponenten

5

Edukt 1

HCID 67994581ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-1-carboxylate

Produkt 1

HCID 67995215ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-9H-pyrido[3,4-b]indole-1-carboxylateAusbeute 32 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 23938PalladiumKatalysatorHCID 7237O-XyleneLösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-1-carboxylate (4.68 g, 8.12 mmol) and 10% palladium on carbon (2.59 g, 2.44 mmol) in xylene (130 mL) was heated at 120° C. overnight. The reaction mixture was diluted with ethyl acetate and filtered through a pad of CELITE®. The CELITE® pad was washed well with ethyl acetate, and the filtrate was concentrated under reduced pressure. The residue was purified by flash silica gel chromatography using a mixture of ethyl acetate in hexane (20%-35%-50%) to give ethyl 4-(3-(((benzyloxy)carbonyl)amino)-2-methylphenyl)-7-bromo-3-methyl-9H-pyrido[3,4-b]indole-1-carboxylate (1.49 g, 2.60 mmol, 32% yield) as a burgundy solid. LC/MS M+1=572.2 and 574.2.

Aufarbeitung

  1. filtrationfiltered through a pad of CELITE®
  2. washThe CELITE® pad was washed well with ethyl acetate
  3. concentrationthe filtrate was concentrated under reduced pressure
  4. customThe residue was purified by flash silica gel chromatography
  5. additiona mixture of ethyl acetate in hexane (20%-35%-50%)

Quellen und Nachweise

ORD-Eintrag
ord-b41f55783afe4136a4f04b72f6790a8d
Quelldatensatz
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08685969B2

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