Thermal Stability Assessment of Peptide Coupling Reagents Commonly Used in Pharmaceutical Manufacturing was written by Sperry, Jeffrey B.;Minteer, Christopher J.;Tao, JingYa;Johnson, Rebecca;Duzguner, Remzi;Hawksworth, Michael;Oke, Samantha;Richardson, Paul F.;Barnhart, Richard;Bill, David R.;Giusto, Robert A.;Weaver, John D.. And the article was included in Organic Process Research & Development in 2018.Name: ((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V) The following contents are mentioned in the article:
Amide couplings are one of, if not the most common, chem. reactions performed in the pharmaceutical industry. Many amide bonds are generated with the help of highly active peptide coupling reagents. These reagents garnered wide use in the pharmaceutical industry, but many contain high-energy functional groups. As a result, significant time is spent assessing the thermal stability of these reagents before scale-up commences. This work assessed the thermal stability of 45 common peptide coupling reagents by differential scanning calorimetry and accelerating rate calorimetry. Those compounds flagged as potentially impact-sensitive or potentially explosive were tested by drop-hammer and explosivity screening techniques. The data are presented to drive development of these reactions toward the use of one of the more thermally stable reagents. This study involved multiple reactions and reactants, such as ((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V) (cas: 156311-83-0Name: ((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V)).
((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V) (cas: 156311-83-0) belongs to triazole derivatives. However, triazoles are also useful in bioorthogonal chemistry, because the large number of nitrogen atoms causes triazoles to react similar to azides. Due to the structural characteristics, both 1,2,3- and 1,2,4-triazoles are able to accommodate a broad range of substituents (electrophiles and nucleophiles) around the core structures and pave the way for the construction of diverse novel bioactive molecules.Name: ((3H-[1,2,3]Triazolo[4,5-b]pyridin-3-yl)oxy)tri(pyrrolidin-1-yl)phosphonium hexafluorophosphate(V)
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics