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The absolute configuration of embellicine A ( 1 ) was determined by TDDFT ECD calculations of solution conformers , whereas that of embellicine B ( 2 ) was deduced based on ROESY correlations and on biogenetic considerations in comparison to 1 .
 Chemical: embellicine A; Chemical: embellicine B
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: embellicine A; Chemical: embellicine B