A new subgroup of bisbenzylisoquinoline alkaloids: (+)-cycleatjehenine and (+)-cycleatjehine

A new subgroup of bisbenzylisoquinoline alkaloids: (+)-cycleatjehenine and (+)-cycleatjehine (+)-N-Formylnornantenine, a New Aporphine Alkaloid from Cyclea atjehensis (+)-N-Formylnornantenine, a New Aporphine Alkaloid from Cyclea atjehensis Four Amidic Bisbenzylisoquinoline Alkaloids from Cyclea atjehensis Head-to-tail bisbenzylisoquinoline alkaloids from Cyclea sutchuenensis Tumor Inhibitors. LXXIX. New alkaloids and related artifacts from Cyclea peltata Three cissampareine-type bisbenzylisoquinoline alkaloids from Cyclea species Bisbenzylisoquinoline Alkaloids from the Roots of Cyclea tonkinensis Cytotoxic and Antimalarial Bisbenzylisoquinoline Alkaloids from Cyclea barbata Cytotoxic and Antimalarial Bisbenzylisoquinoline Alkaloids from Cyclea barbata