Text this: Pheromone synthesis. Part 244: Synthesis of the racemate and enantiomers of (11Z,19Z)-CH503 (3-acetoxy-11,19-octacosadien-1-ol), a new sex pheromone of male Drosophila melanogaster to show its (S)-isomer and racemate as bioactive

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