6287-35-0Relevant articles and documents
6H-benzopyrano[3,4-b]quinoline compounds as well as preparation method and application thereof
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Paragraph 0018; 0020-0023, (2021/01/29)
The invention relates to new 6H-benzopyrano[3,4-b]quinoline compounds as well as a preparation method and application thereof in preparation of antitumor drugs. The chemical general formulas of the compounds are shown as structural formulas (I) and (II). In-vitro anti-tumor activity screening results show that the compounds represented by the formula I and the formula II have broad-spectrum anti-tumor activity, and have strong inhibition activity on human colorectal cancer (HCT116), human liver cancer (HepG2), human pancreatic cancer (SW1990), human ovarian cancer (A2780), human breast cancer(MCF7) and human cervical cancer (Hela). Compounds 7h and 7n have relatively strong anti-inhibition activity on a HepG2 cell line, and IC50 of the compounds is 0.58 [mu]M and 1.94 [mu]M respectively and is remarkably superior to that of a control drug irinotecan; a compound 7a has high selectivity on a Hela cell line, and IC50 is 4.37 [mu]M; and compounds 9h and 9i have strong inhibition effects on six tumor cell lines, and the IC50 values are 6.38-21.04 [mu]M and 5.12-23.31 [mu]M respectively. Therefore, the compounds can be used for preparing anti-tumor drugs.
Facile one-pot multicomponent synthesis of highly functionalized tetrahydropyridines using thiamine hydrochloride as an organocatalyst
Singh, Sandeep,Gupta, Annah,Kapoor, Kamal K.
supporting information, p. 1056 - 1063 (2020/03/04)
Thiamine hydrochloride (VitB1) has been found to be an efficient catalyst for the multicomponent synthesis of highly functionalized tetrahydropyridines from the reaction of β-ketoester, aromatic aldehydes and anilines. VitB1 is easily available, cheap, and eco benign.
Profiling structural diversity and activity of 2-alkyl-4(1H)-quinoloneN-oxides ofPseudomonasandBurkholderia
B?ttcher, Thomas,Dieterich, Cora Lisbeth,Prothiwa, Michaela,Szamosvári, Dávid
supporting information, p. 6328 - 6331 (2020/06/21)
We synthesized all major saturated and unsaturated 2-alkyl-4(1H)-quinoloneN-oxides ofPseudomonasandBurkholderia, quantified their native production levels and characterized their antibiotic activities against competingStaphylococcus aureus. We demonstrate that quinolone core methylation and position of unsaturation in the alkyl-chain dictate antibiotic potency which supports the proposed mechanism of action.