scp command with special characters in destination and source usernames

I have a problem with the scp command I want to send a file between to Vms but they "@" on there username exemple:

usernameVM1=user@name"
usernameVM2=user@name

I tried using the -o with the command I can't just specify one username

scp -o "User=user@name:SSH:name" ipadresse:/path_to_file /path_destination

Is there a solution that I can do.