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This work is focused on the design of new antimicrobial drugs and on the development of lipophilic inhibitors of the DXR , the second enzyme of the MEP pathway for the biosynthesis of isoprene units in most bacteria , by replacing the phosphonate group of fosmidomycin derivatives by a tetrazoyl moiety capable of multiple hydrogen bonding .
 Chemical: isoprene; Chemical: phosphonate; Chemical: fosmidomycin; Chemical: tetrazoyl; Chemical: hydrogen
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: isoprene; Chemical: phosphonate; Chemical: fosmidomycin; Chemical: tetrazoyl; Chemical: hydrogen