The N-Dmb group disrupts hydrogen bonding in the peptide backbone and reduces aggregation. Incorporated into long or difficult peptides, N-Dmb dipeptides can improve peptide yield and purity.
In Fmoc-Asp(OtBu)-(Dmb)Gly-OH the Dmb protecting group prevents aspartimide formation and the subsequent formation of side products.
N-Dmb group is removed with TFA. Typically this occurs simultaneously with TFA cleavage of the peptide from the resin.
![Fmoc-Asp(OtBu)-(Dmb)Gly-OH [900152-72-9]](https://www.peptide.com/wp-content/uploads/2019/06/thm_lrg_53349-1.png)

