1) CH3-CH(CH3)-CH2-CH(CH2CH3)-CH2OH2) CH3-CH2-CH(CH3)-CH2-CH2-CH2-CHOH3) CH3-CH2-CH2-COOH(CH2)5-CH34) CH3-C6H4-CH(CH3)-OH
1) CH3-CH(CH3)-CH2-CH(CH2CH3)-CH2OH
2) CH3-CH2-CH(CH3)-CH2-CH2-CH2-CHOH
3) CH3-CH2-CH2-COOH(CH2)5-CH3
4) CH3-C6H4-CH(CH3)-OH