SURFACE ACOUSTIC WAVE DEVICE FOR A DIFFERENTIAL PHASE-SHIFT DIRECT-SEQUENCE SPREAD-SPECTRUM SIGNAL RECEIVER

摘要

The invention relates to new derivatives of the 3,5 - dioxo - (2h, 4h) - 1,2,4 - triazine of general formula i & br / (see appended drawing in bopi) & br / & & br / in which: & br / - r1 and r2, which are identical or different, represent hydrogen or an alkyl radical of c1 - c6 br / - you may take the integer values from 2 to 6 & br / - a represents a group of type (br / . aryl piperazino ii br / (see appended drawing in bopi) & br / & & br / the group ar represents it - even an aromatic structure such as phenyl, naphthyl, pyrimidyl, pyridyl, optionally substituted by one or more groups such as alkyl, c1 - c3, alkoxy, c1 - c3, hydroxyl, trifluoromethyl or halogen. & br / benzodioxanyl methyl amino or alkylamino iii pyridodioxanyl methyl (br / (see appended drawing in bopi) & br / & & br / in which r represents hydrogen or an alkyl group c1 - c3 and x represents an atom of nitrogen or carbon. & br / & it also relates to pharmaceutical compositions comprising as active ingredient at least one of these compounds of general formula i / p