pass data from deleted table to another
If you want to keep the existing rows and don't want the table renamed but only a few columns altered/changed/dropped, you can do this with a single ALTER TABLE statement. This will only fail if there is no index on (id):

ALTER TABLE table_1
   CHANGE COLUMN id 
      id_table_1 int NOT NULL AUTO_INCREMENT,
-- ADD PRIMARY KEY 
--    (id_table_1),
   CHANGE COLUMN active 
      status TINYINT NOT NULL DEFAULT 1,
   CHANGE COLUMN sent
      sent TINYINT DEFAULT 0,
   DROP COLUMN description ;


Tested at SQL-Fiddle