3,4,5-Trimethoxybenzoic acid [(2S,7aα,14aβ)-dodecahydro-11-oxo-7α,14α-methano-2H,6H-dipyrido[1,2-a:1',2'-e][1,5]diazocin-2β-yl] ester

Description

Obtained from the dried branches of Sarothamnus catalaunicus Webb, this alkaloid is dextrorotatory with [α]²⁰_D + 73.6° (c 1.0, MeOH). It forms clusters of colourless needles from either MeOH or Et₂0. On acid hydrolysis it forms lupanine and trimethoxybenzoic acid, thereby confirming the above structure.

References

Faugeras, Paris., Compt. Rend., 271D, 611 (1970)