laravel route regex except

Router::get('pages/{page}', ...)->where('page', '^(?!about|contact)$');

Route::group(['prefix'=>'accounts','as'=>'account.'], function(){
    Route::get('/', 'AccountController@index')->name('index');
    Route::get('connect', 'AccountController@connect')->name('connect');
});

Route::group(['prefix'=>'quotes','as'=>'quote.'], function(){
    Route::get('/', 'QuoteController@index')->name('index');
    Route::get('connect', 'QuoteController@create')->name('create');
});