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Merck and Co Inc
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Merck and Co Inc
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Publication of ES448280A1publicationCriticalpatent/ES448280A1/es
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Un procedimiento para la preparación de nuevas 1,3+Dihidroimidazo{4,5-b} piridin-2-onas de fórmula: **(Fórmula)** donde X es oxígeno o azufre; n es 0-3; R es (1) hidrógeno, (2) alquilo inferior o alquilo inferior sustituido con uno o más grupos seleccionados entre (a) fenilo, (d) halógeno, (e) trifluormetilo, (f) amino o amino sustituido con alquilo inferior, (g) fenoxi o (h) ciano, R4 es (1) hidrógeno, (2) 5- o 6-alquilo inferior, especialmente alquilo C1-5, (3) 5- o 6-nitro, (4) 5- o 6-amino, (5) 5- o 6-halógeno, especialmente fluor o (6) 5- o 6-alcoxi(inferior)carbonilamino, especialmente alcoxi(inferior) (C1-5)carbonilamino.
ES448280A1975-05-281976-05-26Un procedimiento para la preparacion de nuevos 1,3-dihicloi-midazo 4,5,6-piridinonas.
ExpiredES448280A1
(es)