Cyclopropane Pipecolic Acids as Templates for Linear and Cyclic Peptidomimetics: Application in the Synthesis of an Arg-Gly-Asp (RGD)-Containing Peptide as an α<sub>v</sub>β<sub>3</sub>Integrin Ligand
作者:Lorenzo Sernissi、Martina Petrović、Dina Scarpi、Antonio Guarna、Andrea Trabocchi、Francesca Bianchini、Ernesto G. Occhiato
DOI:10.1002/chem.201403077
日期:2014.8.25
The synthesis and evaluation of substituted cyclopropane pipecolic acids (CPA) as conformationally restricted templates for linear and cyclic peptidomimetics is reported. A variety of differently substituted (poly)hydroxy‐ and amino‐2‐azabicyclo[4.1.0]heptane‐1‐carboxylic acids were prepared by means of the Pd‐catalyzed methoxycarbonylation of suitably functionalized lactam‐derived enol phosphates
Diastereodivergent Synthesis of 4-Hydroxy-2,3-methanopipecolic Acid Derivatives as Conformationally Constrained Homoserine Analogues
作者:Ernesto G. Occhiato、Andrea Casini、Antonio Guarna、Dina Scarpi
DOI:10.1002/ejoc.201100962
日期:2011.11
methylide were 1:4 to 1:7 in DMSO and diastereopure trans isomers were obtained by chromatography after OH-deprotection in 57–73 % yield. These compounds are new, conformationallyconstrained homoserine analogues potentially useful as conformational probes and for drug discovery in medicinal chemistry.