The present invention is directed to multinuclear lanthanides chiral clusters, based on phenyl-oxazoline-amide (POxA) ligands, and to methods of use thereof. The chiral clusters of this invention are highly fluorescent with high stability.
available molybdenum(VI) oxides such as (NH4)2MoO4, (NH4)6Mo7O24·4H2O, MoO2(acac)2, and MoO2(TMHD)2 are highly effective dehydrative cyclization catalysts for the synthesis of a variety of oxazolines. The reaction proceeds with a complete retention of configuration at the β-position. For the dehydrative cyclization of cysteine derivatives, bis(2-ethyl-8-quinolinolato)dioxomolybdenum(VI) shows remarkable
(NH 4)2 MoO 4,(NH 4)6 Mo 7 O 24 ·4H 2 O,MoO 2(acac)2和MoO 2(TMHD)2等市售氧化钼(VI)是高效的脱水环化反应用于合成各种恶唑啉的催化剂。反应进行时将构型完全保留在β位。对于半胱氨酸衍生物的脱水环化反应,双(2-乙基-8-喹啉酮基)二氧钼(VI)显示出显着的催化活性,并在没有明显损失立体化学完整性的情况下提供了噻唑啉。C 2-外甲硫氨酸的位置。
Modulating the Serotonin Receptor Spectrum of Pulicatin Natural Products
作者:Zhenjian Lin、Misty D. Smith、Gisela P. Concepcion、Margo G. Haygood、Baldomero M. Olivera、Alan Light、Eric W. Schmidt
DOI:10.1021/acs.jnatprod.7b00317
日期:2017.8.25
Serotonin (5-HT) receptors are important in health and disease, but the existence of 14 subtypes necessitates selective ligands. Previously, the pulicatins were identified as ligands that specifically bound to the subtype 5-HT2B in the 500 nM to 10 mu M range and that exhibited in vitro effects on cultured mouse neurons. Here, we examined the structure activity relationship of 30 synthetic and natural pulicatin derivatives using binding, receptor functionality, and in vivo assays. The results reveal the 2-arylthiazoline scaffold as a tunable serotonin receptor-targeting pharmacophore. Tests in mice show potential antiseizure and antinociceptive activities at high doses without motor impairment.