C -> C-CO -> C-CO-CH4 -> C-CO-CH4-CH3Br -> C-CO-CH4-CH3Br-C2H6 -> C-CO-CH4-CH3Br-C2H6-C2H5Cl -> C-CO-CH4-CH3Br-C2H6-C2H5Cl-C4H10 -> C-CO-CH4-CH3Br-C2H6-C2H5Cl-C4H10-C4H9NO2
C -> C-CO -> C-CO-CH4 -> C-CO-CH4-CH3Br -> C-CO-CH4-CH3Br-C2H6 -> C-CO-CH4-CH3Br-C2H6-C2H5Cl -> C-CO-CH4-CH3Br-C2H6-C2H5Cl-C4H10 -> C-CO-CH4-CH3Br-C2H6-C2H5Cl-C4H10-C4H9NO2