發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : An Expeditious and Green Synthesis of 3,3¢-(Arylmethylene)-bis-(4-hydroxycoumarins) Catalyzed by 5-Sulfosalicylic Acid