(7S)-3',4',6,8-Tetrahydro-7'-methoxy-2'-methyl-6-methylenespiro[7H-indeno[4,5-d]-1,3-dioxole-7,1'(2'H)-isoquinolin]-6'-ol

This phenolic alkaloid occurs in Corydalis ochotensis and C. sibirica Pers. It is dextrorotatory with [Q:l~4 + 51.7° (CHCI3) and [o:J~3 + 63.9° (0.1 N/HCI). The methiodide yields tetragonal crystals from MeOH with m.p. 215°C. The 0- methyl ether is ochotensimine (q.v.). The above structure has been confirmed by the total synthesis of the optically inactive form of the alkaloid.

ChEBI: Ochotensine is a member of isoquinolines.

Manske., Can. J. Res., 18B, 75 (1940)
McLean, Mei-Sie Lin, McDonald, Trotter., Tetrahedron Lett., 185 (1966)
McDonald, Trotter., J. Chern. Soc., B, 929 (1966)
Total synthesis: Irie, Kishimoto, Uyeo., J. Chern. Soc., C, 3051 (1968)