發送短信 : A Friedländer route to 5,7-Diazapentacenes

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