A new benzylisoquinoline alkaloid (*)-N-methoxycarbonyl-norjuziphine (1) was isolated from Litsea cubeba. Its structure was identified by extensively spectroscopic techniques and confirmed by the single-crystal X-ray diffraction analysis. Compound 1 showed cytotoxicity against HL-60 and MCF-7 cells, with IC(50) values of 18.1 and 15.0 muM, respectively, comparable to 3.1 and 17.5 muM of the cisplatin (positive control).