A thienodiazepine is a

heterocyclic compound A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic organic chemistry is the branch of organic chemistry dealing with the synthesis, proper ...

containing a

diazepine Diazepine is a seven-membered heterocyclic compound with two nitrogen atoms (e.g., in ring positions 1 and 2). Types include: * 1,2-Diazepine * 1,3-Diazepine * 1,4-Diazepine ** Benzodiazepines Benzodiazepines (BZD, BDZ, BZs), colloquial ...

ring fused to a

thiophene Thiophene is a heterocyclic compound with the formula C4H4S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. It is a colorless liquid with a benzene-like odor. In most of its reacti ...

ring. If R₁ and R₂ are part of a

triazole A triazole is a heterocyclic compound featuring a five-membered ring of two carbon atoms and three nitrogen atoms with molecular formula C2H3N3. Triazoles exhibit substantial Isomer, isomerism, depending on the positioning of the nitrogen atoms w ...

ring, the substance is called a "

thienotriazolodiazepine A thienotriazolodiazepine is a heterocyclic compound containing a diazepine ring fused to thiophene and triazole rings. Thienotriazolodiazepine forms the central core of several pharmaceutical drugs including: * α-Hydroxyetizolam * Brotizolam ...

." The thienodiazepine structure forms the central core of some pharmaceutical and recreational drugs, including

bentazepam Bentazepam (also known as Thiadipone, Tiadipona) is a thienodiazepine which is a benzodiazepine analog. It possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. Peak plasma rates are achieved in around 2,5 hours ...

clotiazepam Clotiazepam (marketed under brand name Clozan, Distensan, Trecalmo, Rize, Rizen and Veratran) is a thienodiazepine drug which is a benzodiazepine analog. The clotiazepam molecule differs from benzodiazepines in that the benzene ring has been r ...

, and

tofisopam Tofisopam (Emandaxin, Grandaxin, Sériel) is an anxiolytic that is marketed in several European countries. Chemically, it is a 2,3-benzodiazepine. Unlike other anxiolytic benzodiazepines (which are generally 1,4- or 1,5-substituted) however, tofi ...

. Since thienodiazepines interact with the

benzodiazepine receptor The GABAA receptor (GABAAR) is an ionotropic receptor and ligand-gated ion channel. Its endogenous Ligand (biochemistry), ligand is γ-aminobutyric acid (GABA), the major inhibitory neurotransmitter in the central nervous system. Accurate regul ...

site, they typically have similar effects as

benzodiazepine Benzodiazepines (BZD, BDZ, BZs), colloquially known as "benzos", are a class of central nervous system (CNS) depressant, depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed t ...

References

Thienodiazepines {{heterocyclic-stub