Description
Present in Kopsia longijlora, this base is purified by crystallization from light
petroleum when it forms colourless crystals. It has [α]
23D - 76.9° (c 2.09,
CHC1 3). It forms a crystalline dihydrochloride with m.p. 253-4°C, a mono_x0002_methiodide, m.p. 265-6°C and a monopicrate, m.p. 222-3°C. The N-formyl
derivative is identical with aspidofractine (q.v.).
References
Crow, Michael., Austral. 1. Chem., 8, 129 (1955)
Kump, Schmid., Helv. Chim. Acta, 44, 1503 (1961)
Kump et al., ibid, 45, 854 (1962)
