Chemistry:Indoramin
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| Formula | C22H25N3O |
| Molar mass | 347.462 g·mol−1 |
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Indoramin (trade names Baratol and Doralese) is a piperidine antiadrenergic agent.
It is an alpha-1 selective adrenoceptor antagonist[1] with direct myocardial depression action; therefore, it results in no reflex tachycardia. It is also used in benign prostatic hyperplasia (BPH).[2]
It is commonly synthesized from tryptophol.[3]
Dosage
Indoramin is commonly prescribed as 20 mg tablets when used in BPH.[4]
Side Effects
Drowsiness, dizziness, dry mouth, nasal congestion, headache, fatigue, weight gain, hypotension, postural hypotension, depression, problems with ejaculation, diarrhoea, nausea, increased need to pass urine, and palpitations.[5]
Synthesis
Tryptamine and serotonin are naturally occurring indole ethylamino compounds with pronounced pharmacological activities. They have served as the inspiration for synthesis of numerous analogues.
However, on May 31, 2013, the French National Agency for the Safety of Medicines and Health Products (ANSM) concluded that the benefit/risk ratio of this product was unfavorable and withdrew Vidora's marketing authorization and recalled its batches from the market on June 3, 2013.[6]
One such study involved alkylation of 4-benzamidopyridine (2) with 3-(2-Bromoethyl)-1H-indole (1) to give a quaternary salt (3); this intermediate was in turn hydrogenated with a Raney nickel catalyst to give indoramine (4).
References
- ↑ "Investigation into the cardioregulatory properties of the alpha 1-adrenoceptor blocker indoramin". British Journal of Pharmacology 87 (2): 433–441. February 1986. doi:10.1111/j.1476-5381.1986.tb10834.x. PMID 3955309.
- ↑ "Indoramin 20mg tablets". Medicines.org.uk. April 20, 2011. http://www.medicines.org.uk/Guides/indoramin%20hydrochloride/prostatic%20hyperplasia%20(benign).
- ↑ Ullman's encyclopedia of Industrial Chemistry, Sixth Edition, 2002.
- ↑ "Indoramin hydrochloride". National Health Service (UK). http://www.nhs.uk/medicine-guides/pages/MedicineOverview.aspx?condition=Prostatic%20hyperplasia%20(benign)&medicine=indoramin%20hydrochloride.
- ↑ "Indoramin 20mg tablets". Medicines.org.uk. https://www.medicines.org.uk/emc/product/6666.
- ↑ "Actualités" (in fr). https://ansm.sante.fr/actualites/a-la-une.
- ↑ Archibald JL, Jackson JO, ZA patent 6803204; eidem, U.S. Patent 3,527,761 (1969, 1970 both to Wyeth).
- ↑ "Synthesis and hypotensive activity of benzamidopiperidylethylindoles". Journal of Medicinal Chemistry 14 (11): 1054–1059. November 1971. doi:10.1021/jm00293a009. PMID 5115203.
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