Replace one of the segment with a wildcard in a simple way?

Question

I have this code in nginx config:

location ~ ^/assets/(static|dynamic)/(images|styles|scripts|fonts|videos|audios|var)/(.*) {
    alias /var/web/app1/assets/$1/$2/$3;
    autoindex off;
    expires 366d;
}

Now I want to replace the (images|styles|scripts|fonts|videos|audios|var) with a wildcard. And everything should continue to work as-is. That is, in that segment, there could be a directory with any name whatsoever.

Is there a simple way to do it in a simple way? Preferably without a regexp.