Figure 1.
Depsipeptide formation following dry-heating and depsipeptide depolymerization (building block recycling) following a wet phase. (A) HPLC-UV chromatograms for building blocks dried from unbuffered solutions for 7 days at 65 °C to form depsipeptides. ″c(xX)″ denotes the 2,5-MD of a building block when observed. Numbers: polymer length, e.g., 4 = (gG)4. (B) Time-dependent recovery of building blocks gG, gA, aG, and aA during unbuffered (pH 3) aqueous incubations at 65 °C of 10 mM building block samples previously dried for 7 days at 65 °C.