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The present work first describes the synthesis and characterization of five new O - 2 , O - 3 permethylated O - 6 alkylthio - and perfluoroalkyl - propanethio - amphiphilic beta - cyclodextrins .
 Chemical: O - 2 , O - 3 permethylated O - 6 alkylthio - and perfluoroalkyl - propanethio - amphiphilic beta - cyclodextrins
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: O - 2 , O - 3 permethylated O - 6 alkylthio - and perfluoroalkyl - propanethio - amphiphilic beta - cyclodextrins