Name | (R)-Terazosin |
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Synonyms |
terazosin
R(+)-2-[4-[(tetrahydro-2-furanyl)carbonyl]-1-piperazinyl]-6,7-dimethoxy-4-quinazolinamine (+)-(R)-terazosin R(+)-terazosin |
Description | (R)-Terazosin is the R-enantiomer of Terazosin. (R)-Terazosin is a potent α-adrenoceptor antagonist with Ki values of 6.51 nM, 1.01 nM and 1.97 nM for α1a, α1b and α1d-adrenoceptor, respectively[1]. |
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Related Catalog | |
Target |
Ki: 6.51 nM (α1a-adrenoceptor), 1.01 nM (α1b-adrenoceptor) and 1.97 nM (α1d-adrenoceptor)[1] |
In Vitro | (R)-Terazosin is of low affinity for α2a, α2B and α2c-adrenoceptor with Ki values of 3.85 μM, 0.33 μM and 0.37 μM, respectively[1]. (R)-Terazosin may prove to be a useful probe in understanding the functional role of subtypes of adrenoceptors in various tissues. Because it is a weaker antagonist at α2B sites than its enantiomer, it may be possible to use (R)-Terazosin to differentiate between pharmacological effects mediated by subtypes of α2-adrenoceptors in animal studies[1]. |
In Vivo | (R)-Terazosin shows antagonism of at rat atrial α2B receptor with a pEC30 of 5.69. (R)-Terazosin shows antagonism of at rat vas deferens α1A and α2A receptor with pA2 values of 7.5 and 5.31, respectively[1]. |
References |
Molecular Formula | C19H25N5O4 |
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Molecular Weight | 387.43300 |
Exact Mass | 387.19100 |
PSA | 103.04000 |
LogP | 1.64090 |