This compound has been obtained by two similar ways: 1) The alkylation of 4-hydroxyphenyl(2-isopropylindolizin-1-yl)sulfone (I) 1,3-dibromopropane (II) by means of K2CO3 in DMF gives 4-(3-bromopropoxy)phenyl(2-isopropylindolizin-1-yl)sulfone (III), which is finally condensed with N-[2-(3,4-dimethoxyphenyl)ethyl]-N-methylamine. 2) By direct condensation of sulfone (I) with the tertiary amine N-(3-chloropropyl)-N-[2-(3,4-dimethoxyphenyl)ethyl]-N-methylamine.