7315
Key reactions in the synthesis include desymmetrization of the bis ( dimethylamide ) unit of tartaric acid , Zn ( BH ( 4 ) ) ( 2 ) - mediated anti - selective reduction , and a Horner - Wadsworth - Emmons olefination .
 Chemical: bis ( dimethylamide ); Chemical: tartaric acid; Chemical: Zn ( BH ( 4 ) ) ( 2 )
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: bis ( dimethylamide ); Chemical: tartaric acid; Chemical: Zn ( BH ( 4 ) ) ( 2 )