171009-41-9Relevant academic research and scientific papers
Flexible routes to thiophenes
Jullien, Helene,Quiclet-Sire, Beatrice,Tetart, Thomas,Zard, Samir Z.
, p. 302 - 305 (2014/01/23)
Three convergent routes to thiophenes are described, hinging on the radical addition of α-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61-94%).
Synthesis of quinoxaline analogues
Chang, Meng-Yang,Lee, Tein-Wei,Hsu, Ru-Ting,Yen, Tzu-Lin
experimental part, p. 3143 - 3151 (2011/10/30)
Substituted tricyclic or tetracyclic quinoxalines, tricyclic pyridoquinoxalines and bis-quinoxalines were synthesized in high yields starting from cyclic ketones by the -bromination of cyclic ketones with N-bromosuccinimide (NBS) followed by condensation of the resulting -bromo ketones with 1,2-diaminobenzene, 3,4-diaminopyridine, or 3,3-diaminobenzidine. Georg Thieme Verlag Stuttgart New York.
Design, synthesis, and structure-activity relationships of novel bicyclic azole-amines as negative allosteric modulators of metabotropic glutamate receptor 5
Burdi, Douglas F.,Hunt, Rachel,Fan, Lei,Hu, Tao,Wang, Jun,Guo, Zihong,Huang, Zhiqiang,Wu, Chengde,Hardy, Larry,Detheux, Michel,Orsini, Michael A.,Quinton, Maria S.,Lew, Robert,Spear, Kerry
experimental part, p. 7107 - 7118 (2010/12/25)
A novel series of diaryl bicyclic azole-amines that are potent selective negative modulators of metabotropic glutamate receptor 5 (mGluR5) were identified through rational design. An initial hit compound 5a of modest potency (IC50 = 1.2 μM) was synthesized. Evaluation of structure-activity relationships (SAR) on the left-hand side of the molecule revealed a preference for a 2-substituted pyridine group linked directly to the central heterocycle. Variation of the central azolo-amine portion of the molecule revealed a preference for the [4,5-c]-oxazoloazepine scaffold, while right-hand side variants showed a preference for ortho- and meta-substituted benzene rings linked directly to the tertiary amine of the saturated heterocycle. These iterations led to the synthesis of 29b, a potent (IC50 = 16 nM) and selective negative modulator that showed good brain penetrance, high receptor occupancy, and a duration of action greater than 1 h in rat when administered intraperitoneally. Formal PK studies in rat and Rhesus monkey revealed a short half-life that was attributable to high first-pass clearance.
Clean six-step synthesis of a piperidino-thiomorpholine library using polymer-supported reagents
Habermann, Joerg,Ley, Steven V.,Scott, James S.
, p. 3127 - 3130 (2007/10/03)
Polymer-supported reagents and other solid sequestering agents may be used to generate a library of piperidino-thiomorpholine derivatives without any chromatographic purification steps.
Total synthesis of balanol: a potent protein kinase C inhibitor of fungal origin
Adams, C. P.,Fairway, S. M.,Hardy, C. J.,Hibbs, D. E.,Hursthouse, M. B.,et al.
, p. 2355 - 2362 (2007/10/02)
The total synthesis of the fungal metabolite balanol, a potent inhibitor of protein kinase C, is described.The synthesis includes a novel synthesis of 3-amino-4-hydroxyazepanes via a directed ring expansion of 3-bromopiperidin-4-ones.
