BTKs
BTKs refer to a class of compounds known as N-benzoyl-N-trifluoroacetyl-L-phenylalanine tert-butyl esters, commonly used in organic synthesis. These compounds are notable for their role as building blocks in peptide synthesis, particularly in the formation of amide bonds through a process called the BTK-mediated peptide coupling. The acronym BTK stands for the three functional groups present in the molecule: benzoyl, trifluoroacetyl, and tert-butyl ester.
BTKs were introduced as an alternative to traditional coupling reagents like carbodiimides, offering improved selectivity and
In synthetic chemistry, BTKs are particularly useful in solid-phase peptide synthesis (SPPS), where controlled and efficient
While BTKs are effective, they are less commonly used today compared to more modern coupling reagents such