Table 3. Stability Comparison of Trimers (All Experiments Were Conducted at Room Temperature in DMF with 15.67 g Solvent/g Resin Amount).

peptide structure	nomenclature	time to reach 50% self-deprotection conversion (h)	desXaaXaa (%)
Fmoc-Pro-Pro-Ser(tBu)-resin	SPP	13	73
Fmoc-Ala-Pro-Ser(tBu)-resin	SPA	66	37
Fmoc-Pro-Ala-Ser(tBu)-resin	SAP	175	0
Fmoc-Gly-Pro-Ser(tBu)-resin	SPG	70	41
Fmoc-Pro-Gly-Ser(tBu)-resin	SGP	275	0