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The second step is a cytochrome P450 ( P450 ) - dependent oxidation of this thiolactone resulting in the formation of a sulfenic acid that is eventually reduced into the corresponding active thiol .
 Chemical: thiolactone; Chemical: sulfenic acid; Chemical: thiol
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: thiolactone; Chemical: sulfenic acid; Chemical: thiol