18595-84-1Relevant academic research and scientific papers
Direct synthesis of benzoxazinones via Cp*Co(III)-catalyzed C–H activation and annulation of sulfoxonium ylides with dioxazolones
Yu, Yongqi,Xia, Zhen,Wu, Qianlong,Liu, Da,Yu, Lin,Xiao, Yuanjiu,Tan, Ze,Deng, Wei,Zhu, Gangguo
, p. 1263 - 1266 (2020/10/08)
A highly novel and direct synthesis of benzoxazinones was developed via Cp*Co(III)-catalyzed C–H activation and [3 + 3] annulation between sulfoxonium ylides and dioxazolones. The reaction is conducted under base-free conditions and tolerates various functional groups. Starting from diverse readily available sulfoxonium ylides and dioxazolones, a variety of benzoxazinones could be synthesized in one step in 32%-75% yields.
Palladium (0)-catalyzed C(sp2)-H oxygenation with carboxylic acids
Gong, Ai-Jun,Li, Xu-Qin,Vu, Huu-Manh,Yong, Jia-Yuan
supporting information, (2020/02/15)
Palladium (0)-catalyzed Ortho-benzoxylation of the sp2 C–H bond of arylbenzoxazinones with carboxylic acid is reported. With benzoxazinone as directing group, the reaction went smoothly under the benign condition and gave the desired product wi
Palladium-Catalyzed C-H Bond Monofluorination of 2-Arylbenzo[ d ]oxazinone Using Nitrate as Crucial Promoter
Vu, Huu-Manh,Li, Xu-Qin,Chen, Fei-Wu
, p. 1578 - 1584 (2019/03/26)
Monofluorination of 2-arylbenzo[ d ]oxazinones with N -fluorobenzenesulfonimide (NFSI) was achieved by palladium catalysis in moderate to good yields. Promoted by nitrate, the reaction provides an economic and environmentally friendly strategy. The synthesis of monofluorinated 2-arylbenzo[ d ]oxazinones has good compatibility with many common functional groups. The plausible mechanism of this monofluorination is discussed.
Discovery and validation of 2-styryl substituted benzoxazin-4-ones as a novel scaffold for rhomboid protease inhibitors
Goel, Parul,Jumpertz, Thorsten,Tichá, Ane?ka,Ogorek, Isabella,Mikles, David C.,Hubalek, Martin,Pietrzik, Claus U.,Strisovsky, Kvido,Schmidt, Boris,Weggen, Sascha
supporting information, p. 1417 - 1422 (2018/02/21)
Rhomboids are intramembrane serine proteases with diverse physiological functions in organisms ranging from archaea to humans. Crystal structure analysis has provided a detailed understanding of the catalytic mechanism, and rhomboids have been implicated in various disease contexts. Unfortunately, the design of specific rhomboid inhibitors has lagged behind, and previously described small molecule inhibitors displayed insufficient potency and/or selectivity. Using a computer-aided approach, we focused on the discovery of novel scaffolds with reduced liabilities and the possibility for broad structural variations. Docking studies with the E. coli rhomboid GlpG indicated that 2-styryl substituted benzoxazinones might comprise novel rhomboid inhibitors. Protease in vitro assays confirmed activity of 2-styryl substituted benzoxazinones against GlpG but not against the soluble serine protease α-chymotrypsin. Furthermore, mass spectrometry analysis demonstrated covalent modification of the catalytic residue Ser201, corroborating the predicted mechanism of inhibition and the formation of an acyl enzyme intermediate. In conclusion, 2-styryl substituted benzoxazinones are a novel rhomboid inhibitor scaffold with ample opportunity for optimization.
Silver and Palladium Cocatalyzed Carbonylative Activation of Benzotriazoles to Benzoxazinones under Neutral Conditions
Yin, Zhiping,Wang, Zechao,Wu, Xiao-Feng
supporting information, p. 6232 - 6235 (2017/11/24)
A novel and efficient method for the carbonylative activation of benzotriazoles to benzoxazinones has been developed. By using a silver and palladium bimetallic catalyst system, a broad range of benzotriazoles were transformed into the corresponding benzoxazinones in moderate to good yields with excellent functional group tolerance. Notably, this procedure proceeds under neutral conditions.
BCL-3 INHIBITORS
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Paragraph 000366; 000367; 000368; 000383; 000384, (2016/04/06)
The present application relates to compounds of any one of Formulae I, Ia, Ib, Ic, Id, Ie, and If. Compounds of Formula (I) have the structure, wherein A, B, Y, Z, R2, R4, R5, R6, Rq and q are as defined herein. The compounds can be used as inhibitors of Bcl-3 and can be used for the treatment of cancer, particularly metastatic cancer.
2-BENZOYLAMINOBENZAMIDE DERIVATIVES AS BCL-3 INHIBITORS
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Page/Page column 25; 26, (2015/02/25)
The invention relates to a compound of general formula (I): wherein R1, R2, R3, R4, Q, m and n are as defined herein. The compounds are inhibitors of Bcl3 and are useful for the treatment of cancer, particularly
One-pot approach to 2-arylbenzoxazinone derivatives from 2-alkynylanilines using copper-mediated tandem reactions
Yamashita, Mitsuaki,Iida, Akira
, p. 5746 - 5751 (2015/03/30)
In this study, we describe a one-pot method to obtain a variety of 2-arylbenzoxazinones and N-benzoyl anthranilic acid by using a copper catalyst and molecular oxygen as oxidants. This protocol involves tandem cyclization and oxidative processes of 2-alkynylanilines to afford significant motifs in synthetic and medicinal chemistry with moderate yields. We also demonstrated that combining the Sonogashira coupling and the developed method realized the synthesis of 2-arylbenzoxazinones derivatives from commercially available 2-iodoanilines and terminal acetylenes.
Copper-mediated oxidative tandem reactions with molecular oxygen: Synthesis of 2-arylbenzoxazinone derivatives from indoles
Yamashita, Mitsuaki,Iida, Akira
supporting information, p. 2991 - 2993 (2014/05/06)
We developed an efficient method for the transformation of indoles by utilizing a copper catalyst and molecular oxygen as the oxidant. The transformation involves a tandem oxidative process of 2-arylindoles. Our reaction afforded a variety of N-benzoyl an
Synthesis of 2-Aryl-4H-3,1-Benzoxazin-4-ones: A Class of α-Chymotrypsin Inhibitors
Khan, Zulfiqar Ali,Afzal, Noshaba,Hussain, Zaib,Naqvi, Syed Ali Raza,Bari, Ayesha,Shahzad, Sohail Anjum,Yar, Muhammad,Mahmood, Nasir,Bukhari, Shazia Anwer,Mansha, Asim,Zahoor, Ameer Fawad,Khan, Abdur Rahman,Ahmad, Matloob
, p. 4561 - 4565 (2014/12/10)
Twenty one derivatives of 2-aryl-4H-3,1-benzoxazin-4-one were synthesized and their potential therapeutically significance and structureactivity relationship were tested against α-chymotrypsin. Majority of synthesized compounds showed significant in vitro α-chymotrypsin inhibitory properties having IC50values in the range of 5.42 ± 1.66 - 41.27 ± 1.33 μM, whereas standard inhibitor chymostatin have IC50 value 7.13 ± 1.06 μM. In the present series compounds 2-(2-fluorophenyl)-4H-3,1-benzoxazin-4-one (3h), 2-(2-bromophenyl)-4H-3,1- benzoxazin-4-one (3n) and 2-(1-naphthyl)-4H-3, 1-benzoxazin-4-one (3t) with IC50values 7.22 ± 0.75, 6.99 ± 0.29 and 5.42 ± 1.66 μM, respectively were found to be most active members of series, even better than standard inhibitor a-chymostatin.
