(6aS)-4,5,6,6a,7,8-Hexahydro-2,11,12-trimethoxy-6-methylbenzo[6,7]cyclohept[1,2,3-ij]isoquinoline-1,10-diol

The structure of merenderine has recently been reinvestigated by Russian workers who have established, from NMR and mass spectroscopy that it has the revised empirical formula given above and the structure of S-floramultine.

Trozyan, Yusupov, Aslanov., Khirn. Prir. Soedin., 11,527 (1975)