Le Manach, Claire; Dam, Jean; Woodland, John G.; Kaur, Gurminder; Khonde, Lutete P.; Brunschwig, Christel; Njoroge, Mathew; Wicht, Kathryn J.; Horatscheck, Andre; Paquet, Tanya; Boyle, Grant A.; Gibhard, Liezl; Taylor, Dale; Lawrence, Nina; Yeo, Tomas; Mok, Sachel; Eastman, Richard T.; Dorjsuren, Dorjbal; Talley, Daniel C.; Guo, Hui; Simeonov, Anton; Reader, Janette; van der Watt, Mariette; Erlank, Erica; Venter, Nelius; Zawada, Jacek W.; Aswat, Ayesha; Nardini, Luisa; Coetzer, Theresa L.; Lauterbach, Sonja B.; Bezuidenhout, Belinda C.; Theron, Anjo; Mancama, Dalu; Koekemoer, Lizette L.; Birkholtz, Lyn-Marie; Wittlin, Sergio; Delves, Michael; Ottilie, Sabine; Winzeler, Elizabeth A.; von Geldern, Thomas W.; Smith, Dennis; Fidock, David A.; Street, Leslie J.; Basarab, Gregory S.; Duffy, James; Chibale, Kelly published an article in 2021. The article was titled 《Identification and Profiling of a Novel Diazaspiro[3.4]octane Chemical Series Active against Multiple Stages of the Human Malaria Parasite Plasmodium falciparum and Optimization Efforts》, and you may find the article in Journal of Medicinal Chemistry.HPLC of Formula: 53939-30-3 The information in the text is summarized as follows:
A novel diazaspiro[3.4]octane series was identified from a Plasmodium falciparum whole-cell high-throughput screening campaign. Hits displayed activity against multiple stages of the parasite lifecycle, which together with a novel sp3-rich scaffold provided an attractive starting point for a hit-to-lead medicinal chem. optimization and biol. profiling program. Structure-activity-relationship studies led to the identification of compounds that showed low nanomolar asexual blood-stage activity (<50 nM) together with strong gametocyte sterilizing properties that translated to transmission-blocking activity in the standard membrane feeding assay. Mechanistic studies through resistance selection with one of the analogs followed by whole-genome sequencing implicated the P. falciparum cyclic amine resistance locus in the mode of resistance. In the experimental materials used by the author, we found 5-Bromo-2-chloropyridine(cas: 53939-30-3HPLC of Formula: 53939-30-3)
5-Bromo-2-chloropyridine(cas: 53939-30-3) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.HPLC of Formula: 53939-30-3