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