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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Publication of ES410260A1publicationCriticalpatent/ES410260A1/es
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Plural Heterocyclic Compounds
(AREA)
Abstract
Un procedimiento para preparar derivados de quinazolina representados por la fórmula **fórmula** en que D representa un grupo de fórmula **fórmula** W representa oxígeno o azufre, n representa 0 o un número entero de 1 a 3, R1,R2 y R3 repressenta cada uno hidrógeno , halógeno, nitro, alcohilo C1-4, alcoxi C1-4, alcohiltio C1-4, alcohilsulfonilo C1-4, alcohilsulfinilo C1-4,, trifluorometilo y R4 representa cicloalcohilo C3-6, y sus sales por adición de ácido farmacéuticamente aceptables, caracterizado porque comprende hacer reaccionar un derivado de quinazolina no sustituido.
ES410260A1969-08-021972-12-30Un procedimiento para preparar derivados de quinazolina.
ExpiredES410260A1
(es)