Phytochemical research on an extract of Notopterygium incisum yielded twenty-four compounds (1–24), including four newcompounds 7, 10, 13 and 17. The structures of newcompounds were elucidated by spectroscopic analysis, and the absolute configuration of 5 were assigned via Mosher's method. In addition, compounds 2, 9, 19 and 24 were analyzed by single crystal X-ray analysis for the first time. The new compound