Specefic if else statement in select query

I tried this select query with an IF statement but it didn't work,

Have you any solution

thank you

Select IF(field1 = 1, \'Oui\', IF(field2 != 0 and field1 = 0,\'En 

cours\', IF(field2 = 0 and field1 = 0,\'non\', \'non\'),\'non\'))  as Payed
from myTable

error message :

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '),'non')) as Payed