Cell proliferation inhibitors.

摘要

A compound of the formula: <CHEM> wherein, R<1> and R<2> are the same or different, representing methyl or methoxy groups, or form -CH=CH-CH=CH- by binding to each other; R<3> 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.