25141
Two new vinblastine - type N - oxide alkaloids , 17 - desacetoxyvinblastine [ Formula : see text ] - oxide ( 1 ) and 20 ' - deoxyvinblastine [ Formula : see text ] - oxide ( 2 ) , were isolated from the leaves of Catharanthus roseus .
 Chemical: vinblastine; Chemical: N - oxide alkaloids; Chemical: 17 - desacetoxyvinblastine; Chemical: oxide; Chemical: 20 ' - deoxyvinblastine; Chemical: oxide
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: vinblastine; Chemical: N - oxide alkaloids; Chemical: 17 - desacetoxyvinblastine; Chemical: oxide; Chemical: 20 ' - deoxyvinblastine; Chemical: oxide