7Richard H A, M Janssen, Peter Wijkens, Cor Kruk, et aL Assignments of ^1H and^13 C-NMR resonances of some isoquinoline Alkaloids [ J]. Phytochemlstry, 1990, 29 (10) :3331.
8Chang Yuhchwen, Chen Chungyi, Chang Fangrong, et al. Alkaloids from Lindera glauca[ J]. J Chie Chem Soc, 2001, 48: 811.
9Marcia L R Ferreira, Inara C de Pascoli, Isabele R Nasciatento, et al. Aporphine and bisaporphine alkaloids from Aristolochialage siana vat. intermed/a[J]. Phytochemistry, 2010, 71 :469.
10Pavel kocovsky, ghafoor ahmed, Jiris rogl, et al. New lewisacidic nolybdenum(II) and tungsten(II) catalysts for intramolecular carb onyl ene and prins reactions. Reversal of the stereose- lectivity of cyclization of citronellal[ J]. J Org Chem, 1999, 64: 2765.
