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Both sets of [ (1) (1) C ] O - arylcarbamates showed good to excellent brain penetration and an appropriate regional distribution .
 Chemical: [ (1) (1) C ] O - arylcarbamates
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: [ (1) (1) C ] O - arylcarbamates