Set parent page for custom post type

I am working with Wordpress 4 and have some problem with links for custom post type.

1. 
   

   http://localhost/parent_page - first page.

   
   


2. 
   

   http://localhost/parent_page/result/ - second page (subsidiary page of first page)

   
   


3. 
   

   And for single page (custom post type) I want set link - localhost/parent_page/company_name/. But here I have conflicts, if I set "parent_page" for company (custom post type)

   
   

   'rewrite' => array('slug' => 'parent_page', 'with_front' => false)

   
   
   
   
   • second page will not work (404, page not found)