25863
Based on the ( 1 ) H NMR analysis , all the compounds were found to adopt normal chair conformation with equatorial orientation of all the substituents .
 Chemical: ( 1 ) H
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: ( 1 ) H