Text this: Site-specific dual functionalization of cysteine residue in peptides and proteins with 2-azidoacrylates

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