Buffer ring problem with uses of make feature layer

Im trying to create a buffer ring shape but gets me the error 210:

arcgisscripting.ExecuteError: ERROR 000210: Cannot create output C:\Trabajo Carto\TempPrograma\"capa de Ringbuff70".shp Failed to execute (Dissolve).

Failed to execute (MultipleRingBuffer).

with open (nombarch3) as p:
for x in recortes2:
    dtaring = p.readline()
    arquet, valbuf2, datperm= dta.split(",")
    valbuf2=float(valbuf2)
    a= valbuf2*0.3
    b= valbuf2*0.5
    c= valbuf2
    distances = [a,b,c]
    c=str(x)
    arcpy.MakeFeatureLayer_management(outsal,'"capa de Ringbuff'+x+'"')
    arcpy.MultipleRingBuffer_analysis(outsal,'"capa de Ringbuff'+x+'"', distances, "meters", "", "ALL")

p.close first = True entrada = [] for x in recortes2: if not first: entrada=entrada+","+ '"capa de Ringbuff'+x+'"' else: first = False entrada='"capa de Ringbuff'+x+'"' arcpy.Merge_management(entrada,bufferRings)