The Total Synthesis and Stereochemical Revision of Yanucamide A
摘要:
GraphicsThe first total synthesis of yanucamide A is reported via amide and ester couplings of the key components. This synthesis has established the configuration at the previously ambiguous 3-position, and also revised the stereochemistry at the 22-position, to give 3S, 12S, 17S, 22S for the natural product.
Design, Synthesis, and Optimization of Balanced Dual NK1/NK3Receptor Antagonists
摘要:
In connection with a program directed at potent and balanced dual NK1/NK3 receptor ligands, a focused exploration of an original class of peptidomimetic derivatives was performed. The rational design and molecular hybridization of a novel phenylalanine core series was achieved to maximize the in vitro affinity and antagonism at both human NK1 and NK3 receptors. This study led to the identification of a new potent dual NK1/NK3 antagonist with pK(i) values of 8.6 and 8.1, respectively.