Piperidine → tert-butyl (Z)-4-({2-[(5-chloro-1H-indol-3-yl)methylene]-6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate

HRID 1749741

Reaktionsgleichung

[OH:1][C:2]1[CH:11]=[CH:10][C:5]2[C:6](=[O:9])[CH2:7][O:8][C:4]=2[C:3]=1[CH2:12][N:13]1[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:15][CH2:14]1.[Cl:26][C:27]1[CH:28]=[C:29]2[C:33](=[CH:34][CH:35]=1)[NH:32][CH:31]=[C:30]2[CH:36]=O.N1CCCCC1>CO>[Cl:26][C:27]1[CH:28]=[C:29]2[C:33](=[CH:34][CH:35]=1)[NH:32][CH:31]=[C:30]2/[CH:36]=[C:7]1\[O:8][C:4]2[C:3]([CH2:12][N:13]3[CH2:14][CH2:15][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:17][CH2:18]3)=[C:2]([OH:1])[CH:11]=[CH:10][C:5]=2[C:6]\1=[O:9]

Komponenten

Reaktionsbedingungen

Temperatur: 60 °C

Versuchsvorschrift

A solution of tert-butyl 4-[(6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.100 g, 0.287 mmol) obtained in Example A16, Step 1 in methanol (1.2 mL) was added with 5-chloro-1H-indole-3-carboxaldehyde (0.0515 g, 0.287 mmol) and piperidine (0.00244 g, 0.0287 mmol), and the mixture was stirred at 60° C. for 3 hours. The reaction mixture was cooled to room temperature, and added with methanol (4 mL), and the solid was suspended in methanol and thereby washed to obtain tert-butyl (Z)-4-({2-[(5-chloro-1H-indol-3-yl)methylene]-6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate (0.0730 g, 49%).

Aufarbeitung

temperatureThe reaction mixture was cooled to room temperature
washwashed

Quellen und Nachweise

ORD-Eintrag: ord-45b2ee8505dc47438a9ceac34aec53fd
Quelldatensatz: uspto-grants-2015_10
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09156827B2

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