اجرای subquery در from در لاراول

سلام من میخوام یک سری دیتا رو از یک جدول دیگ بگیرم برای همین باید از subquery داخل from استفاده کنم اما مطمن نیستم تو لاراول 5.4 همچین امکانی باشه

$sub = Chat::join("chats as _chats", function ($query) {
    $query->on('chats.room_id', "=", "_chats.room_id")
          ->on('chats.user_type', "<>", "_chats.user_type")
          ->on('chats.created_at', "=", DB::raw("(SELECT MIN(created_at) FROM chats WHERE created_at > '_chats.created_at')"));
    })
    ->selectRaw('TIMESTAMPDIFF(MINUTE, _chats.created_at, chats.created_at) as res')
    ->where('chats.user_type', 'pharmacy_consultant')
    ->where('chats.user_id', 26)
    ->toSql();

dd(
    DB::connection('mysql2')
        ->table(DB::raw("({$sub}) as sub"))
        ->select('res')
        ->get()
);

(2/2) QueryException SQLSTATE[HY000]: General error: 2031 
(SQL: select `res` from (select TIMESTAMPDIFF(MINUTE, _chats.created_at, chats.created_at) as res
from `chats` inner join `chats` as `_chats` on `chats`.`room_id` = `_chats`.`room_id` and `chats`.`user_type` <> `_chats`.`user_type` and `chats`.`created_at` = 
(SELECT MIN(created_at) FROM chats WHERE created_at > _chats.created_at) where `chats`.`user_type` = ? and `chats`.`user_id` = ?) as sub)