Cernumidine and isocernumidine, new type of cyclic guanidine alkaloids from Solanum cernuum

1. Lopes, L.C.
2. Roman, B.
3. Medeiros, M.A.
4. Mukhopadhyay, A.
5. Utrilla, P.
6. Gálvez, J.
7. Mauriño, S.G.
8. Moltiva, V.
9. Lourenço, A.
10. Feliciano, A.S.