16142
Three new norlignans , glechomols A - C ( 1 - 3 , respectively ) , together with a known compound , 4 - ethylcatechol ( 4 ) , were isolated from the ethyl acetate extract of Glechoma longituba ( NaKai ) Kupr .
 Chemical: norlignans; Chemical: glechomols A - C; Chemical: 4 - ethylcatechol; Chemical: ethyl acetate
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: norlignans; Chemical: glechomols A - C; Chemical: 4 - ethylcatechol; Chemical: ethyl acetate