Carboxylic esters derivatives of 2-thioxo-1H-2,3,4,5-tetrahydropyrido-[2,3-e]-1,3,4-triazepin-5-ones and 2-thioxo-1H-2,3,4,5-tetrahydro-1,3,4-benzotriazepin-5-ones.
1994
: 2-Thioxo-1H-2,3,4,5-tetrahydropyrido[2,3-e]-1,3,4-triazep in -5-ones [I] and 2-thioxo-1H-2,3,4,-5-tetrahydro-1,3,4-benzotriazepin-5-ones [V] furnish with methyl, ethyl and phenyl chloroformates two series of the corresponding 3-methoxy-, ethoxy- and phenoxycarbonyl triazepines. In the pharmacological screening, compounds [I], [V] and [II] showed an antianxiety activity in the four plate test, compounds [II] and [III] inhibited the 5-HTP- induced head twitches, and compound [VI] showed an analgesic activity in the "writing" test. The replacement of the benzene ring by the pyridine one in triazepines is accompanied by the enhancement of anxiolytic activity as well as toxicity.
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