Traceless Solid-Phase Synthesis of 1,2,4-Triazoles Using a Novel Amine Resin
摘要:
[GRAPHICS]A solid-phase route to 5-aryl-3-arylthiomethyl-1,2,4-triazoles has been developed that permits the incorporation of two elements of diversity. The heterocycle was constructed upon a novel 4-benzyloxy-2-methoxybenzylamine (BOMBA) resin, from which traceless cleavage could be effected with dilute TFA. A library of 96 triazoles was produced with an average yield of 26% (84% yield per step) and an average purity of 80%. In a direct comparison, the new BOMBA resin proved to be markedly superior to Rink Amide resin for this application.
Traceless Solid-Phase Synthesis of 1,2,4-Triazoles Using a Novel Amine Resin
作者:Scott D. Larsen、Brian A. DiPaolo
DOI:10.1021/ol016578a
日期:2001.10.1
[GRAPHICS]A solid-phase route to 5-aryl-3-arylthiomethyl-1,2,4-triazoles has been developed that permits the incorporation of two elements of diversity. The heterocycle was constructed upon a novel 4-benzyloxy-2-methoxybenzylamine (BOMBA) resin, from which traceless cleavage could be effected with dilute TFA. A library of 96 triazoles was produced with an average yield of 26% (84% yield per step) and an average purity of 80%. In a direct comparison, the new BOMBA resin proved to be markedly superior to Rink Amide resin for this application.
Challenging clinically unresponsive medullary thyroid cancer: Discovery and pharmacological activity of novel RET inhibitors
作者:Valeria La Pietra、Stefania Sartini、Lorenzo Botta、Alessandro Antonelli、Silvia Martina Ferrari、Poupak Fallahi、Alessio Moriconi、Vito Coviello、Luca Quattrini、Yi-Yu Ke、Hsieh Hsing-Pang、Federico Da Settimo、Ettore Novellino、Concettina La Motta、Luciana Marinelli
DOI:10.1016/j.ejmech.2018.02.080
日期:2018.4
within the protein active site (V804L and V804M). Pursuing a receptor-based virtual screening against the kinase domain of RET, we found that compound 5 is able to inhibit efficiently both wild type and V804L mutant RET. Compound 5 was able to significantly reduce proliferation of both commercially available TT cell lines and surgical thyroid tissues obtained from patients with MTC and displayed a suitable