109351-33-9
109351-33-9 structure
- Name: Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]-, (S)-
- Chemical Name: (S)-Terazosin
- CAS Number: 109351-33-9
- Molecular Formula: C19H25N5O4
- Molecular Weight: 387.43300
- Catalog: Signaling Pathways GPCR/G Protein Adrenergic Receptor
- Create Date: 2018-01-15 01:40:09
- Modify Date: 2023-02-19 17:23:18
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(S)-Terazosin is an active S-enantiomer of Terazosin. (S)-Terazosin is a potent and high-affinity α-adrenoceptor antagonist with Ki values of 3.91 nM, 0.79 nM and 1.16 nM for α1a, α1b and α1d-adrenoceptor, respectively. (S)-Terazosin also has high-affinity for α2a, α2B and α2c-adrenoceptor with Ki values of 729 nM, 3.5 nM and 46.4 nM, respectively[1].
| Name | (S)-Terazosin |
|---|---|
| Synonyms |
(-)-(S)-terazosin
S(-)-terazosin S(-)-2-[4-[(tetrahydro-2-furanyl)carbonyl]-1-piperazinyl]-6,7-dimethoxy-4-quinazolinamine |
| Description | (S)-Terazosin is an active S-enantiomer of Terazosin. (S)-Terazosin is a potent and high-affinity α-adrenoceptor antagonist with Ki values of 3.91 nM, 0.79 nM and 1.16 nM for α1a, α1b and α1d-adrenoceptor, respectively. (S)-Terazosin also has high-affinity for α2a, α2B and α2c-adrenoceptor with Ki values of 729 nM, 3.5 nM and 46.4 nM, respectively[1]. |
|---|---|
| Related Catalog | |
| Target |
Ki: 3.91 nM (α1a-adrenoceptor), 0.79 nM (α1b-adrenoceptor) and 1.16 nM (α1d-adrenoceptor); 729 nM (α2a-adrenoceptor), 3.5 nM (α2Ba-adrenoceptor) and 46.4 nM (α2c-adrenoceptor)[1] |
| In Vitro | The racemic compound and its enantiomers show high and apparently equal affinity for subtypes of α1-adrenoceptors with Ki values in the low nanomolar range, and showed potent antagonism of α1-adrenoceptors in isolated tissues, with the enantiomers approximately equipotent to the racemate at each α1-adrenoceptor subtype. At α2b sites, (R)-Terazosin binds less potently than either the (S)-Terazosin or racemate[1]. |
| In Vivo | (S)-Terazosin shows antagonism of at rat atrial α2B receptor with a pEC30 of 6.93. (s)-Terazosin shows antagonism of at rat vas deferens α1A and α2A receptor with pA2 values of 8.3 and 6.12, respectively[1]. |
| References |
| Molecular Formula | C19H25N5O4 |
|---|---|
| Molecular Weight | 387.43300 |
| Exact Mass | 387.19100 |
| PSA | 103.04000 |
| LogP | 1.64090 |