11921
The bicyclic depsipeptide histone deacetylase ( HDAC ) inhibitors spiruchostatins C and D were synthesized for the first time in a highly convergent and unified manner .
 spiruchostatins C and D
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 spiruchostatins C and D