Abstract:From the seeds of Annona squamosa L.,compounds 1,2 and 4 were obtained. COmpounds 2 and 4 are known compounds motrilin(2) and bullatanocin (4). Based on the spectra analysis of IR ,MS,1H NMR and 13C NMR,the structure of compounds 1 was eluicidated as (1) and named 22 -epi-molvizarin.