СH3 - С(СH2-CH3) = С(CH2-CH3) - С H2- СH2 - СH3
C H3- CH(CH2-CH3) - CH(CH2-CH3) - CH2 - CH3
CH2 = C(CH3) - C(CH3)2 - CH3
СH3 - С(СH2-CH3) = С(CH2-CH3) - С H2- СH2 - СH3
C H3- CH(CH2-CH3) - CH(CH2-CH3) - CH2 - CH3
CH2 = C(CH3) - C(CH3)2 - CH3
СH3 - С(СH2-CH3) = С(CH2-CH3) - С H2- СH2 - СH3
C H3- CH(CH2-CH3) - CH(CH2-CH3) - CH2 - CH3
CH2 = C(CH3) - C(CH3)2 - CH3