53459-50-0Relevant articles and documents
Peptide-Catalyzed Highly Asymmetric Cross-Aldol Reaction of Aldehydes to Biomimetically Synthesize 1,4-Dicarbonyls
Da, Chao-Shan,Du, Zhi-Hong,Qin, Wen-Juan,Tao, Bao-Xiu,Wang, Pei,Xu, Yan-Li,Yuan, Meng
, (2020)
β-Turn tetrapeptides were demonstrated to catalyze asymmetric aldol reaction of α-branched aldehydes and α-carbonyl aldehydes, i.e. glyoxylates and α-ketoaldehydes, to biomimetically synthesize acyclic all-carbon quaternary center-bearing 1,4-dicarbonyls in high yield and excellent enantioselectivity under mild conditions. The spatially restricted environment of the tetrapeptide warrants high enantioselectivity and yield with broad substrates. Using this protocol, (R)-pantolactone, the key intermediate of vitamin B5, was readily accessed in a practical, efficient, and environmentally benign process from inexpensive starting materials.
Electrochemical removal of the picolinoyl group under mild acidic conditions, application to the protection of amines in peptide synthesis
Auzeil, Nicolas,Dutruc-Rosset, Gilles,Largeron, Martine
, p. 2283 - 2286 (2007/10/03)
The picolinoyl group can be used as a convenient protective group for amines in peptide chemistry. Deprotection is performed by electrochemical reduction under mild acidic conditions.