525-03-1

Journal of Medicinal Chemistry, 23, p. 184, 1980 DOI: 10.1021/jm00176a015

Purify it by converting it to the hydrochloride with HCl, then basify it with NH3 and recrystallise it from pet ether (m 62-63o) or from hexane. The hydrochloride M 217.7, m ~255o(dec, from EtOH). [Ingold et al. J Chem Soc 1493 1933, Mathieu Bull Soc Chim Fr 1526 1971, Beilstein 12 H 1331, 12 I 553, 12 II 780, 1 2 III 3297, 12 IV 3390.]