(6aR)-4,5,6,6a,7,8-Hexahydro-2,10,11,12-tetramethoxy-6-methylbenzo[6,7]cyclohept[1,2,3-ij]isoquinolin-1-ol

This homoaporphine base is present in Kreysigia multiflora Reichb. It forms colourless crystals from EtOH and is optically inactive. The ultraviolet spectrum exhibits absorption maxima at 221, 260 and 293 1T1J1. The alkaloid has been characterized as the methiodide, m.p. 265-6°C.

Badger, Bradbury., J. Chem. Soc., 445 (1960)
Structure:
Battersby et al., Chem. Commun., 450 (1967)