Description
Tomita and his co-workers have obtained this bisisoquinoline alkaloid from the
embryo of the seeds of Nelumbo nucifera Gaertn. The base has [α]
29D + 49.3°
(Me2CO) and - 43.3° (CHC13 ). The hydrochloride tetrahydrate forms colourless
crystals, m.p. l85-6°C (dry); the perchlorate monohydrate has m.p. 200-3°C
(dry); [α]
22D - 70° (Me2CO) and the styphnate of the O,O-dimethyl ether, also
crystalline, has m.p. l33-5°C; [α]
27D - 81.5° (Me2CO). Three methoxyl, two
hydroxyl and two methylimino groups are present.
References
Tomita et aI., Tetrahedron Lett., 2637,3374 (1964)
