Cell proliferation inhibitor

摘要

A compound of the formula: <IMAGE> (I) wherein, R1 and R2 are the same or different/representing methyl or methoxy groups, or form -CH=CH-CH=CH- by binding to each other; R3 is an aromatic group or a heterocyclic group which may be substituted; and n is an integer of 2 to 8, shows inhibitory effect of cell proliferation and is useful as cell proliferation inhibitor.