NGINX: Redirect from current location into named location

Nginx redirect to named location

# Solution 1
# Use only codes  greater than 418, do not use common status codes 404, 402, 403, etc
location /location1 {
    error_page 463 = @app; return 463;
}

# Solution 2 (drawbacks unknown)
location /location2 {
    try_files /dev/null @app;
}

location @app {
    proxy_pass http://127.0.0.1:82;
    proxy_redirect off;
    include proxy_params;   
}