How to rename columns in an SQL-server database

My employer has the habit of giving customer specific tables a name, starting with the name of the customer. This makes it difficult to call the sp_rename stored procedure for renaming column names, as you can see:

/*Version 1:*/
sp_rename 'Customer.FinishedProduct.ShortDescr', 'ShortDescription', 'COLUMN';
sp_rename 'Customer.LogTrackAndTrace.StorePreceddure', 'StoredProcedure', 'COLUMN';
/*Version 2:*/
sp_rename '[Customer.FinishedProduct].[ShortDescr]', '[ShortDescription]', 'COLUMN';
sp_rename '[Customer.LogTrackAndTrace].[StorePreceddure]', '[StoredProcedure]', 'COLUMN';

Both versions don't work. Do you know how this can be written? (The name of a table is 'Customer.FinishedProduct'.)