This alkaloid from Thalictrum minus was originally given the empirical formula
C2oH2303N, later altered to that given above. It forms colourless crystals from
a mixture of CHC13 and EtOH and is laevorotatory with [α]D - 64.5°. The salts
and derivatives are crystalline but normally decompose before melting: the
hydrochloride, m.p. 147-157°C (dec.); perchlorate, decomposing at 238-241°C
and the methiodide, decomposing at 250°C. The o-acetate has [α]D - 219°.
Three methoxyl groups, a phenolic hydroxyl group and two methylimino
groups are present
Yunusov, Progressov.,J. Gen. Chem., USSR, 20, 1151 (1950)
Telezhenetskaya, Ismailov, Yunusov., Khim. Prir. Soedin., 2, 107 (1966)
Baldas et ai., Tetrahedron Lett., 6315 (1968)
