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

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Text this: An efficient solid-phase synthesis of 3-substituted and 3,3-disubstituted 1,2-dialkylpyrazolidine-3,5-diones