5877
The structure of M4a and M4c were confirmed to be ertugliflozin - 4 - O - beta - and - 3 - O - beta - glucuronide , respectively , via comparison of the HPLC retention time and mass spectra with authentic standards .
 Chemical: ertugliflozin - 4 - O - beta - and - 3 - O - beta - glucuronide
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: ertugliflozin - 4 - O - beta - and - 3 - O - beta - glucuronide