5-Hydroxyindole → 4-(1H-indol-5-yloxy)-6-methyl-5,8-dihydro-6H-pyrido[3,4-d]pyrimidine-7-carboxylic acid tert-butyl ester

HRID 45087

Reaktionsgleichung

[C:1]([O:5][C:6]([N:8]1[CH:17]([CH3:18])[CH2:16][C:15]2[C:14](Cl)=[N:13][CH:12]=[N:11][C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH:20][C:21]1[CH:22]=[C:23]2[C:27](=[CH:28][CH:29]=1)[NH:26][CH:25]=[CH:24]2.C1CCN2C(=NCCC2)CC1>CC#N>[C:1]([O:5][C:6]([N:8]1[CH:17]([CH3:18])[CH2:16][C:15]2[C:14]([O:20][C:21]3[CH:22]=[C:23]4[C:27](=[CH:28][CH:29]=3)[NH:26][CH:25]=[CH:24]4)=[N:13][CH:12]=[N:11][C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

A solution of (±)-4-chloro-6-methyl-5,8-dihydro-6H-pyrido[3,4-d]pyrimidine-7-carboxylic acid tert-butyl ester (220 mg, 0.77 mmol), 5-hydroxy indole (155 mg, 1.16 mmol) and MeCN (10 mL) is treated with DBU (0.2 mL, 1.16 mmol) and heated at 80° C. for 4 h. The volume is reduced in vacuo and the residue is separated via FCC (5-90% EtOAc/heptane) to give the title compound. MS (ESI) m/z 381.3 (M+H).

Aufarbeitung

customthe residue is separated via FCC (5-90% EtOAc/heptane)

Quellen und Nachweise

ORD-Eintrag: ord-22c57473bae94ed3b49e8253b9233a65
Quelldatensatz: uspto-grants-2013_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08541432B2

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