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Chemical compound
Amosulalol AHFS /Drugs.com International Drug Names Routes of administration Oral ATC code Legal status
In general: ℞ (Prescription only)
(RS )-5-[1-hydroxy-2-[2-(2-methoxyphenoxy)ethylamino]ethyl]-2-methylbenzenesulfonamide
CAS Number PubChem CID ChemSpider UNII KEGG ChEMBL CompTox Dashboard (EPA ) Formula C 18 H 24 N 2 O 5 S Molar mass 380.46 g·mol−1 3D model (JSmol )
CC1=C(C=C(C=C1)C(CNCCOC2=CC=CC=C2OC)O)S(=O)(=O)N
InChI=1S/C18H24N2O5S/c1-13-7-8-14(11-18(13)26(19,22)23)15(21)12-20-9-10-25-17-6-4-3-5-16(17)24-2/h3-8,11,15,20-21H,9-10,12H2,1-2H3,(H2,19,22,23)
Y Key:LVEXHFZHOIWIIP-UHFFFAOYSA-N
Y
Amosulalol (INN ) is an antihypertensive drug . It has much higher affinity for α1 -adrenergic receptors than for β-adrenergic receptors .[ 1] It is not approved for use in the United States .
Synthesis
Guaiacol (1) reacts with ethylene oxide to give 2-(2-methoxyphenoxy)ethanol (2). Halogenation with thionyl chloride converts the alcohol group to a chloride, (3), which is used to alkylate benzylamine (4) to give the secondary amine (5). This forms a tertiary amine (7) when combined with 5-bromoacetyl-2-methylbenzenesulfonamide (6). The reduction of the carbonyl group with sodium borohydride produces (8) and catalytic hydrogenation removes the benzyl group , yielding amosulalol.[ 2] [ 3] [ 4]
References
^ Sponer G, Bartsch W, Hooper RG (1990). "Drugs acting on multiple receptors: β-blockers with additional properties." . Pharmacology of antihypertensive therapeutics . Handbook of Experimental Pharmacology. Vol. 93. Berlin, Heidelberg: Springer. pp. 131–226 (183). doi :10.1007/978-3-642-74209-5_5 . ISBN 978-3-642-74209-5 .
^ US patent 4217305 , Kazuo Imai, et al., "Phenylethanolamine derivatives", issued 1980-08-12, assigned to Yamanouchi Pharmaceutical Co. Ltd.
^ Arima, H.; Tamazawa, K.; Synthesis of 14C-labeled 5-[1-hydroxy-2-[2-(o-methoxyphenoxy)ethylamino]ethyl]-2-methylbenzenesulfonamide hydochloride (YM-09538). J Label Compd Radiopharm 1983, 20, 7, 803-811.
^ "Amosulalol" . Pharmaceutical Substances . Thieme. Retrieved 2024-07-12 .
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