What is the proper chemical nomenclature for the below compounds?  Help a brother out.  Thanks.

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000404499-file_isim.jpg" title="View this image">

In chronological order:

First Two (top):

First: 2-(5-Methoxy-4-methyl-benzofuran-7-yl)-1-methyl-ethylamine

Second: 2-(5-Methoxy-4-methyl-2,3-dihydro-benzofuran-7-yl)-1-methyl-ethylamine

Last one (bottom):

3-[2-(4-bromo-2,5-Dimethoxy-phenyl)-1-methyl-ethylamino]-N,N-diethyl-propionamide