6-Methoxy-1,3-dioxolo[4,5-h]furo[2,3-b]quinoline

Description

Terasaka has isolated this furoquinoline alkaloid from the roots of Orixa japonica and Obata has found that it also occurs in the fruit along with skim_x0002_mianine (q.v.). The alkaloid is optically inactive and is converted by Mel at 100°C into isokokusagine, m.p. 247°C. The aurichloride has m.p. 171°C and the picrate, m.p. 178°C (157°C according to Obata). The structure has been established by synthesis as 7: 8-methylenedioxydictamnine.

References

Terasaka.,J. Pharm. Soc. Japan, 51,99 (1931)
Obata., ibid, 59,136 (1939)
Structure:
Terasaka et at., Chem. Pharm. Bull. (Tokyo), 2, 159 (1954)