Three aporphine alkaloids, laurolitsine, boldine and N-acetyllaurolitsine were isolated from the stems of both Litsea rotundifolia and L. rotundifolia var. oblongifolia. Their structures were identified on the basis of spectral analysis and chemical correlation. Among them, N-acetyllaurolitsine was found as a naturally occurring compound for the first time.
[1]ZHANG Shui-ying,GUO Qiang,CAO Yuan,ZHANG Yuan,GAO Xiao-li,TU Peng-fei and CHAI Xing-yun.Alkaloids from roots and stems of Litsea cubeba[J].China Journal of Chinese Materia Medica,2014,39(20):3964-3968.