Day: February 22, 2023

C-H Alkylation of Heteroarenes with Alkyl Oxalates by Molecular Photoelectrocatalysis was written by Xu, Fan;Lai, Xiao-Li;Xu, Hai-Chao. And the article was included in Synlett in 2021.Synthetic Route of C11H9NO2 This article mentions the following:

An oxidant- and metal-free photoelectrocatalytic C-H alkylation reaction of heteroarenes with alkyl oxalates was developed. Several classes of heteroaromatics, such as quinolines, isoquinolines, pyridines, and phenanthridines, would be alkylated with tertiary or secondary alkyl oxalates. The photoelectrochem. synthesis employed 2,4,5,6-tetra-9 H-carbazol-9-ylisophthalonitrile as a mol. catalyst and allowed the oxidative transformations and proceeded through evolution of hydrogen without a sacrificial chem. oxidant. In the experiment, the researchers used many compounds, for example, Methyl isoquinoline-3-carboxylate (cas: 27104-73-0Synthetic Route of C11H9NO2).

Methyl isoquinoline-3-carboxylate (cas: 27104-73-0) belongs to isoquinoline derivatives. Quinoline is a catabolite of tryptophan, the basic structure of some antihypertensive drugs, such as the peripheral vasodilators prazosin and doxazosin. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Synthetic Route of C11H9NO2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lithioarene Cycliacylation and Pd-Catalyzed Aminoethylation/Cyclization to Access Electronically Diverse Saturated Isoquinoline Derivatives was written by Buchman, Marek;Farney, Elliot P.;Greszler, Stephen N.;Altenbach, Robert J.;Gfesser, Gregory A.;Voight, Eric A.. And the article was included in Journal of Organic Chemistry in 2022.Name: tert-Butyl 7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate This article mentions the following:

Authors report operationally facile methods for the synthesis of substituted dihydroisoquinolinones and tetrahydroisoquinolines from readily accessible o-bromobenzyl bromides and o-bromobenzaldehydes, resp. While classical electrophilic aromatic substitution reactions are tailored to the construction of saturated isoquinolines derived from electron-rich precursors, authors demonstrate efficient syntheses from electronically diverse substrates to produce cyclized products as single regioisomers. In the experiment, the researchers used many compounds, for example, tert-Butyl 7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 1257855-77-8Name: tert-Butyl 7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate).

tert-Butyl 7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 1257855-77-8) belongs to isoquinoline derivatives. Quinoline is a mancude organic heterobicyclic parent, an azaarene, an ortho-fused heteroarene and a member of isoquinolines. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Name: tert-Butyl 7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Berberine-mediated REDD1 down-regulation ameliorates senescence of retinal pigment epithelium by interrupting the ROS-DDR positive feedback loop was written by Chen, Qingqiu;Xin, Guang;Li, Shiyi;Dong, Yuman;Yu, Xiuxian;Wan, Chengyu;Wei, Zeliang;Zhu, Yuda;Zhang, Kun;Wang, Yilan;Li, Fan;Zhang, Cuicui;Wen, E.;Li, Yulong;Niu, Hai;Huang, Wen. And the article was included in Phytomedicine in 2022.Category: isoquinoline This article mentions the following:

Accumulation of age-associated senescent cells accompanied with increased reactive oxygen species (ROS) and inflammatory factors contributes to the progression of age-related macular degeneration (AMD), the main cause of blindness in the elderly. Berberine (BBR) has shown efficacy in the treatment of age-related diseases including diabetes and obesity by decreasing ROS. However, the pharmacol. effect of BBR on alleviating retinal aging remains largely unknown. Our study aimed to investigate the pharmacol. effect of BBR as an anti-aging agent in retinal aging and its further mol. mechanisms. D-galactose (DG)-induced ARPE-19 cell senescence and retinal aging were employed to evaluate the anti-aging effect of BBR in vivo and in vitro. The siRNA transfection, Western-Blot analyses, SA-β-Gal assay and immunofluorescence were performed to investigate the potential mechanisms of BBR on anti-aging of RPE. In RPE-choroid of both natural aged and DG-induced accelerated aged mice, oxidative stress was increased along with the up-regulation of p21 expression, which was ameliorated by BBR treatment. BBR down-regulated the expression of REDD1 to decrease intracellular ROS content, attenuating DG-induced senescence in vitro and in vivo. Furthermore, p53 instead of HIF-1α was identified as the transcriptional regulator of REDD1 in DG-induced premature senescence. Importantly, NAC and BBR reversed the expression of p53 and the content of 8-OHdG, indicating that the pos. feedback loop of ROS-DNA damage response (DDR) was formed, and BBR interrupted this feedback loop to alleviate DG-induced premature senescence by reducing REDD1 expression. In addition, BBR restored DG-damaged autophagy flux by up-regulating TFEB-mediated lysosomal biosynthesis by inhibiting REDD1 expression, thereby attenuating cellular senescence. BBR down-regulates REDD1 expression to interrupt the ROS-DDR pos. feedback loop and restore autophagic flux, thereby reducing premature senescence of RPE. Our findings elucidate the promising effects of REDD1 on cellular senescence and the great potential of BBR as a therapeutic approach. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1Category: isoquinoline).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Category: isoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem