2539
Phytochemical investigation of the n - butanol ( n - BuOH ) fraction of this plant led to the isolation of four new 2 , 6 - dideoxyhexose - C - glycosyl flavones , including luteolin - 8 - C - beta - digitoxopyranosyl - 4 ' - O - beta - d - glucopyranoside ( 1 ) , apigenin - 8 - C - beta - digitoxopyranoside ( 2 ) , apigenin - 8 - C - beta - boivinopyranoside ( 3 ) and luteolin - 8 - C - beta - boivinopyranoside ( 4 ) , together with five known compounds ( 5 - 9 ) .
 Chemical: n - butanol; Chemical: n - BuOH; Chemical: 2 , 6 - dideoxyhexose - C - glycosyl flavones; Chemical: luteolin - 8 - C - beta - digitoxopyranosyl - 4 ' - O - beta - d - glucopyranoside; Chemical: apigenin - 8 - C - beta - digitoxopyranoside; Chemical: apigenin - 8 - C - beta - boivinopyranoside; Chemical: luteolin - 8 - C - beta - boivinopyranoside
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: n - butanol; Chemical: n - BuOH; Chemical: 2 , 6 - dideoxyhexose - C - glycosyl flavones; Chemical: luteolin - 8 - C - beta - digitoxopyranosyl - 4 ' - O - beta - d - glucopyranoside; Chemical: apigenin - 8 - C - beta - digitoxopyranoside; Chemical: apigenin - 8 - C - beta - boivinopyranoside; Chemical: luteolin - 8 - C - beta - boivinopyranoside