880361-90-0Relevant articles and documents
Benzothiazinone derivative with 6-position substituted with trifluoromethyl as well as preparation method and application thereof
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Paragraph 0010; 0018, (2021/07/17)
The invention discloses a benzothiazinone derivative with the 6-position substituted with trifluoromethyl as well as a preparation method and application of the benzothiazinone derivative. According to the invention, benzene ring of a benzothiazinone framework is creatively changed, particularly a substituent group is creatively changed, a series of compounds are obtained, and unexpected technical effects are achieved; and specifically, compared with other benzothiazinone derivatives, the benzothiazinone derivative with the 6-position substituted with trifluoromethyl is more stable to liver microsomal enzyme, the metabolic half-life period T1/2 is longer, and the water solubility is better.
Structural and Activity Relationships of 6-Sulfonyl-8-Nitrobenzothiazinones as Antitubercular Agents
Chiarelli, Laurent R.,Fan, Dongguang,Han, Quanquan,Lu, Yu,Qiao, Chunhua,Shi, Rui,Stelitano, Giovanni,Wang, Bin,Huszár, Stanislav,Miku?ová, Katarína,Savková, Karin
supporting information, p. 14526 - 14539 (2021/10/26)
The benzothiazinone (BTZ) scaffold compound PBTZ169 kills Mycobacterium tuberculosis by inhibiting the essential flavoenzyme DprE1, consequently blocking the synthesis of the cell wall component arabinans. While extraordinarily potent against M. tuberculosis with a minimum inhibitory concentration (MIC) less than 0.2 ng/mL, its low aqueous solubility and bioavailability issues need to be addressed. Here, we designed and synthesized a series of 6-methanesulfonyl substituted BTZ analogues; further exploration introduced five-member aromatic heterocycles as linkers to attach an aryl group as the side chain. Our work led to the discovery of a number of BTZ derived compounds with potent antitubercular activity. The optimized compounds 6 and 38 exhibited MIC 47 and 30 nM, respectively. Compared to PBTZ169, both compounds displayed increased aqueous solubility and higher stability in human liver microsomes. This study suggested that an alternative side-chain modification strategy could be implemented to improve the druglike properties of the BTZ-based compounds.