How to bind CTRL+1 key to mouse with xbindkeys?

I want to bind the CTRL+1 key combination to my mouse with xbindkeys. This code (“xte ‘keydownControl_L’ ‘key 1’ ‘keyupControl_L’” b:9) did not work, but the same one worked for CTRL+C. What am I doing wrong?

Hello,
Please check the link below