27768
Catalysis of Cope - type rearrangements of bis - homoallylic hydroxylamines is demonstrated using chiral thiourea derivatives .
 Chemical: bis - homoallylic hydroxylamines
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 - homoallylic hydroxylamines