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

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發送短信 : Highly enantio- and diastereoselective reactions of γ-substituted butenolides through direct vinylogous conjugate additions