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Purity:99%
The invention discloses a synthetic meth...
Quinazoline derivatives of the following...
6-hydroxy-2-methylbenzofuran-3-carboxylic acid methylamide
6,7-dimethoxy-4-chloroquinazoline
6-(6,7-dimethoxyquinazolin-4-yloxy)-N,2-dimethylbenzofuran-3-carboxamide
Conditions | Yield |
---|---|
In
acetone;
at 60 ℃;
for 12h;
Inert atmosphere;
|
89% |
With
potassium carbonate;
In
acetonitrile;
for 10h;
Reflux;
|
85% |
O-methylresorcine
6-(6,7-dimethoxyquinazolin-4-yloxy)-N,2-dimethylbenzofuran-3-carboxamide
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps
1.1: N-Bromosuccinimide / N,N-dimethyl-formamide / 2 h / 30 °C
2.1: triethylamine / dichloromethane / 2 h / 30 °C
3.1: dibromobis(triphenylphosphine)nickel(II) / tetrahydrofuran / 1 h / 0 °C / Inert atmosphere
4.1: potassium tert-butylate / tetrahydrofuran / 2 h / 40 °C / Inert atmosphere
5.1: boron tribromide / dichloromethane / 1 h / 0 °C / Inert atmosphere
6.1: 1,1'-carbonyldiimidazole / tetrahydrofuran / 1 h / Inert atmosphere
6.2: 2 h / 0 - 25 °C / Inert atmosphere
7.1: acetone / 12 h / 60 °C / Inert atmosphere
With
dibromobis(triphenylphosphine)nickel(II); N-Bromosuccinimide; potassium tert-butylate; boron tribromide; triethylamine; 1,1'-carbonyldiimidazole;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; acetone;
|
6-hydroxy-2-methylbenzofuran-3-carboxylic acid methylamide
6,7-dimethoxy-4-chloroquinazoline
O-methylresorcine
2-bromo-5-methoxyphenol
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