....................CH3 .....................|CH3-CH2-CH-CH- CH2 -CH3 ............................l...........................CH3...............................CH3 ................................lCH2=CH -CH2 - C- CH2 - CH3 ................................l..,,.....,...,,................CH3 ............Br.............lCH3 - CH - CH - CH2 - CH2 - CH2 - CH2 - CH3 ......................l,,...................Br.....................................F,,...................................lCH3 -CH2 - CH2 - CH - CH - CH2 - CH2 - CH2 - CH3 ..............................................l.............................................C2H5