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Astellas Pharma Inc
Original Assignee
Yamanouchi Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Priority to ES470210ApriorityCriticalpatent/ES470210A1/es
Publication of ES470210A1publicationCriticalpatent/ES470210A1/es
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Un procedimiento, de producción de compuestos heterocíclicos nitrogenados representados por la fórmula:** (formula)** Y representa un átomo de oxígeno o un átomo de azufre; n representa 0 ó 1; R1 y R4, que pueden ser iguales o diferentes, representan cada uno de ellos un átomo de hidrógeno, un grupo alquilo inferior o un grupo alquenilo inferior; R2 representa un átomo de hidrógeno, un grupo alquilo inferior o un grupo alquenilo inferior; R3 representa un átomo de hidrógeno, un grupo hidroxilo, un grupo alcanoiloxi inferior, un grupo alquilo inferior o un grupo alquenilo inferior.
ES470210A1978-05-241978-05-24Un procedimiento de produccion de compuestos heterociclicos nitrogenados
ExpiredES470210A1
(es)