Studies on the Alkaloids of Menispermaceous Plants. XCV

Alkaloids of Cocculus laurifolius DC. (Suppl. II.)

抄録

The authors have prepared dl-O, O-dimethylcoclaurine (II) and dl-O, O-dimethyl-N-methylcoclaurine, viz., dl-1-(4′-methoxybenzyl)-6, 7-dimethoxy-N-methyl-1, 2, 3, 4-tetrahydroisoquinoline (III), starting with natural dl-coclaurine (I), and some comments have been made on their data. From these results, it has been clarified that the d-, l- and dl-form of the substance (III) all show the same melting point of 62°.