苯-CH-CH2-COOH
CH3
苯-CH2-CH-COOH
CH3
苯-CH-COOH
CH2-CH3
CH3
苯-CH-COOH
CH3
酯
CH3
苯-CH-COOCH3
CH3
苯-CH-OOCCH3
苯-CH-COOCH2-CH3
苯-CH-OOCCH2-CH3
苯-CH-CH2-COOH
CH3
苯-CH2-CH-COOH
CH3
苯-CH-COOH
CH2-CH3
CH3
苯-CH-COOH
CH3
酯
CH3
苯-CH-COOCH3
CH3
苯-CH-OOCCH3
苯-CH-COOCH2-CH3
苯-CH-OOCCH2-CH3