أرسل هذا في رسالة قصيرة: Naphthoquinones from the leaves of Rhinacanthus nasutus having acetylcholinesterase inhibitory and cytotoxic activities

  ______    ______   _    _    _    _    _    _   
 /_   _//  /_   _// | |  | || | || | || | |  | || 
   | ||     -| ||-  | |/\| || | || | || | |/\| || 
  _| ||     _| ||_  |  /\  || | \\_/ || |  /\  || 
 /__//     /_____// |_// \_||  \____//  |_// \_|| 
 `--`      `-----`  `-`   `-`   `---`   `-`   `-`