重写规则有异常

Here is my directory structure

main site:-

www.magentosite.com

Wordpress site:-

www.magentosite.com/wordpresssite

And Here is my htaccess rule for redirect. If User goes to wordpress site then they will redirect to magentoSite.

RewriteCond %{REQUEST_URI} !^WordpresSITE/
RewriteRule .? http://www.MagentoSITE.com/ [L]

PROBLEM

Above should work as it is but I want to put if user goes to admin side of wordpress then yes they should not redirect. In short www.magentosite.com/wordpresssite/wp-admin/... should not redirect.

The below code should go inside the .htaccess on the WordPress folder:

Options +FollowSymLinks -MultiViews

RewriteEngine On

RewriteCond %{REQUEST_URI} !^/wordpresssite/(wp-login\.php|wp-admin) [NC]
RewriteRule ^ http://www.MagentoSITE.com/ [R=302,L]

Basically what I am doing is if the URL start with:

www.magentosite.com/wordpresssite/wp-login.php

Or starts with:

www.magentosite.com/wordpresssite/wp-admin

It should not redirect, if it doesn't then it redirects.