2-(1-Piperazinyl)-4-amino-6,7-dimethoxyquinazoline → 1-Piperazinecarboxamide, 4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-N-cyclopentyl-

Beteiligte Stoffe

Reaktionsschritte

In 30 ml of dioxane, there was dissolved 1.16 g. (4 mmole) of 2-piperazino-4-amino-6,7-dimethoxyquinazoline. To the resultant solution was added dropwise 0.45 g. (4 mmole) of cyclopentyl isocyanate at room temperature and the mixture was stirred overnight at room temperature. The precipitated crystals were recovered by filtration to obtain 1.34 g. of the desired product.

Herkunft & Nachweise