Clinical data | |
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Other names | BMS-180492 |
Pharmacokinetic data | |
Elimination half-life | 18 hours [1] |
Identifiers | |
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PubChem CID | |
ChemSpider | |
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ChEMBL | |
Chemical and physical data | |
Formula | C23H28ClN5O3 |
Molar mass | 457.96 g·mol−1 |
3D model (JSmol) | |
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Triazoledione (developmental code name BMS-180492) is a phenylpiperazine compound and a major metabolite of the antidepressant nefazodone. [2] [3] It is active, but with substantially reduced potency compared to nefazodone (approximately one-seventh). [3] [2] As such, it has been suggested that it is unlikely that triazoledione contributes significantly to the pharmacology of nefazodone. [3] However, triazoledione may reach concentrations as great as 10 times those of nefazodone, and hence could still be a significant contributor to its therapeutic effects. [2]
Site | Ki (nM) | Species | Ref |
---|---|---|---|
SERT | ≥34,527 ≥26,471 | Human Rat | [5] [5] [3] |
NET | >100,000 100,000 | Human Rat | [5] |
DAT | ND | ND | ND |
5-HT1A | 636–1,371 | Rat | [3] [5] |
5-HT2A | 159–211 | Rat | [5] [3] |
5-HT2C | ND | ND | ND |
α1 | 173 1,000 | Human Rat | [5] [3] |
α2 | 1,915 1,000 | Human Rat | [5] [3] |
β | >100,000 | Rat | [3] |
H1 | 11 | Guinea pig | [5] |
mACh | >100,000 | Rat | [5] |
Values are Ki (nM). The smaller the value, the more strongly the drug binds to the site. |
Triazoledione shows significant affinity for the serotonin 5-HT1A and 5-HT2A receptors, the α1-adrenergic receptor, and the histamine H1 receptor. [3] [5] It shows negligible affinity for the serotonin and norepinephrine transporters and the muscarinic acetylcholine receptors. [3] [5]
Compound | 5-HT1A | 5-HT2A | SERT | NET | α1 | α2 | β | H1 | mACh |
---|---|---|---|---|---|---|---|---|---|
Hydroxynefazodone | 56–589 | 7.2–34 | 165–1,203 | 376–1,053 | 8.0–145 | 63–2,490 | >1,000 | 28 | 11,357 |
mCPP | 16–411 | 110–433 | 127–432 | 490–4,360 | 97–763 | 112–371 | 4,890 | 449 | 4,702 |
Nefazodone | 52–1,030 | 7.1–32 | 181–549 | 200–713 | 5.5–144 | 84–41,700 | >100,000 | 30 | 4,569 |
Trazodone | 42–288 | 11–20 | 115–690 | ≥20,887 | 12–23 | 106–1,070 | 47,100 | 29 | 12,188 |
Triazoledione | 636–1,371 | 159–211 | ≥26,471 | >100,000 | ≥173 | ≥1,915 | >100,000 | 11 | >100,000 |
Values are Ki (nM). The smaller the value, the more strongly the drug binds to the site. |
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