How to make mass redirects in a directory?

Question

htaccess

Let's say two links

/product/kolpachkovaya-kolonna-mednaya (old site)
and
/product-category/dlya-samogonshhika/alambiki-mednye/kolpachkovaya-kolonna-mednaya/ (new site)

directory is healthy. Tell me how to make a mass redirect from the old to the new . in fact, we have the same only symbolic product code.

Thanks.

I guess it's possible to go this way, but how do I replace nested categories with regular expressions?
in this example, you need to add to the regular expressions
dlya-samogonshhika/alambiki-mednye

RewriteEngine   on
RewriteBase     /
RewriteRule     ^product/(.*)$  product-category/РЕГУЛЯРКА/РЕГУЛЯРКА/$1 [R=301]

Answer 1

It is not entirely clear which of them was what became.
Give me a couple of links, just as it was, it has become
There are no problems with regular expressions, everything can be inserted there