30249
The approach used in this paper allows the calculation of the free energy profile and enable us to explain the mechanism and kinetics of the neutral hydrolysis of normal ( methyl acetate ) and activated ( methyl trifluoroacetate ) esters .
 Chemical: methyl acetate; Chemical: methyl trifluoroacetate; Chemical: esters
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: methyl acetate; Chemical: methyl trifluoroacetate; Chemical: esters