130418-90-5Relevant articles and documents
The design of 8-hydroxyquinoline tetracyclic lactams as HIV-1 integrase strand transfer inhibitors
Velthuisen, Emile J.,Johns, Brian A.,Temelkoff, David P.,Brown, Kevin W.,Danehower, Susan C.
, p. 99 - 112 (2016)
A novel series of HIV-1 integrase strand transfer inhibitors were designed using the venerable two-metal binding pharmacophore model and incorporating structural elements from two different literature scaffolds. This manuscript describes a number of 8-hyd
From Oxadiazole to Triazole Analogues: Optimization toward a Dual Orexin Receptor Antagonist with Improved in vivo Efficacy in Dogs
Bolli, Martin H.,Boss, Christoph,Brotschi, Christine,Gatfield, John,Heidmann, Bibia,Jenck, Francois,Roch, Catherine,Sifferlen, Thierry,Treiber, Alexander,Williams, Jodi T.
, (2020/01/25)
The orexin system is responsible for regulating the sleep-wake cycle. Suvorexant, a dual orexin receptor antagonist (DORA) is approved by the FDA for the treatment of insomnia disorders. Herein, we report the optimization efforts toward a DORA, where our starting point was (5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}methanone (6), a compound which emerged from our in-house research program. Compound 6 was shown to be a potent, brain-penetrating DORA with in vivo efficacy similar to suvorexant in rats. However, shortcomings from low metabolic stability, high plasma protein binding (PPB), low brain free fraction (fu brain), and low aqueous solubility, were identified and hence, compound 6 was not an ideal candidate for further development. Our optimization efforts addressing the above-mentioned shortcomings resulted in the identification of (4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}l-methanone (42), a DORA with improved in vivo efficacy compared to 6.
Synthesis and thermo-responsive behavior of helical polyacetylenes derived from proline
Shi, Ge,Wang, Sheng,Guan, Xiaoyan,Zhang, Jie,Wan, Xinhua
supporting information, p. 12081 - 12084 (2018/11/21)
A series of optically active helical poly[(S)-2-ethynyl-N-aliphatic acylpyrrolidine] were efficiently synthesized from a commercially available biomass-based starting material, and that bearing a short propionyl substituent exhibited an unexpected lower critical solution temperature in an aqueous solution with a narrow phase-transition window and a small hysteresis.