1. Abdul-Halim, O. B., Sekine, T., Saito, K., Halim, A. F., Abdel-Fatah H. and Murakoshi, I., (+)-12α-Hydroxylupanine, a lupin alkaloid fromLygos reatam.Phytochemistry, 31, 3251–3253 (1992).
2. Adzet, T., Batllori, L. and San Martin, R., Alkaloids of some species of the Genisteae tribe of Leguminosae of Catalonia (Spain).Plant Med. Phytother., 4, 21–23 (1970); C.A.73, 84641v (1970).
3. Ageel, A., Mossa, J. S., Tariq, M., Al Yahya, M. A. and Al-Said, M. S., Medicinal Plants used in Folk Medicine (Arabic), King Abdelaziz City for Science and Technology, Riyadh, 1987, pp. 232.
4. Atta-ur-Rahman, Pervin, A. and Choudhary, M. I., Sophazrine-a novel quinolizidine alkaloids fromSophora griffithii.J. Nat. Prod., 54, 929–935 (1991).
5. Bohlmann, F. and Schumann, D., Synthese des monspessulanins (1).Tetrahedron Lett., 28, 2433–2434 (1965).