N-Fmoc-S-(4-methoxy-trityl)-L-cysteine
The Mmt group can be selectively removed with 0.5% – 1% TFA. The Mmt group can be removed in the presence of S-Trt and t-butyl based protecting groups. K. Barlos, et al., Int. J. Pept. Protein Res., 1996, 47, 148-153.
![Fmoc-Cys(Mmt)-OH [177582-21-7]](https://www.peptide.com/wp-content/uploads/2019/06/thm_lrg_52169-1.png)
