Uses
An enatiomer of (+)-Pseudonorephedrine (P839585). (-)-Pseudonorephedrine is metabolite of Cathinone (C225700) and possesses amphetamine-like stimulus properties. Studies show that (-)-Pseudonorephedri
ne enhances the analgesic and rate decreasing effects of Morphine (M652290) but inhibits discriminative properties.
Definition
ChEBI: Phenylpropanolamine is an amphetamine in which the parent 1-phenylpropan-2-amine skeleton is substituted at position 1 with an hydroxy group. A decongestant and appetite suppressant, it is commonly used in prescription and over-the-counter cough and cold preparations. It has a role as a sympathomimetic agent and a nasal decongestant.
Purification Methods
Purify (-)-nor--ephedrine by recrystallisation from H2O, MeOH, EtOH, Et2O/pet ether or *C6H6 (plates). The mandelate salt has m 163.5o (from EtOH/Et2O) and [] D -41.3o (c 0.8, H2O) [Jarowski & Hartung J Org Chem 8 564 566 567 1943]. The hydrochloride is purified by dissolving 1.44g in 96% EtOH (5mL), adding Et2O (16mL) and cooling; it has m 178-179o (m180-181o is also reported) and [] 30D -42.9o (c 1.8, H2O) [Fles & Markovac-Prpic Croat Chem Acta 29 186 1957]. [Beilstein 13 I 252, 13 II 370, 13 III 1716, 13 IV 1874.]
