Call Executable - Unexpected token

Hi all

In Teststand Call Executable im trying to use the cmd.exe with the follow argument:

ren c:\\putty_log\\putty.log Mainboard_Str(FileGlobals.serial).txt & move c:\\putty_log\\*.txt p:\\Testreports\\Log\\

But i keep getting "Unexpected token".

If i put the argument in a .bat file and manually enter the serial(number) it Works fine.

Can anyone please tell me what im missing in the argument?