Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries Ltd
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Filing date
Publication date
Priority claimed from JP47079758Aexternal-prioritypatent/JPS5147718B2/ja
Priority claimed from JP47115762Aexternal-prioritypatent/JPS523391B2/ja
Application filed by Takeda Chemical Industries LtdfiledCriticalTakeda Chemical Industries Ltd
Publication of ES410065A1publicationCriticalpatent/ES410065A1/es
Un procedimiento para producir un derivado de pirido[3,4-d]piridazina representadp `pr ña fórmula general **fórmula** (en donde R1 es hidrógeno o un grupo alcohilo inferior de 1 a 4 átomos de carbon, R2 es un grupo alcohilo de 1 a 4 átomos de carbono, un grupo aralcohilo de 7 a 8 átomos de carbono o un grupo fenilo, naftilo, furilo o piridilo, sustituido o no sustituido, siendo el sustituyente un grupo alcoxi inferior de 1 3 átomos de carbono, un grupo alcohilo inferior de 1 a 3 átomos de carbón, halógeno o nitro, r3 es hidrógeno o un grupo alcoxi inferior de 1 a 4 átomos de carbono, y R4 es un grupo morfolino, piperidino o pirrolidino sustituido o no sustituido , siendo el sustituyente metilo o etilo) o una de sus sales farmacéuticamente aceptables.
ES410065A1971-12-281972-12-27Un procedimiento para producir un derivado de pirido (3,4- d) piridazina.
ExpiredES410065A1
(es)