Month: December 2022

Kurtanovic, Nezrina published the artcileHuman estrogen receptor α antagonists, part 2: Synthesis driven by rational design, in vitro antiproliferative, and in vivo anticancer evaluation of innovative coumarin-related antiestrogens as breast cancer suppressants, HPLC of Formula: 104-01-8, the main research area is coumarin preparation anticancer antiestrogen ER alpha antagonist pharmacokinetic; Breast cancer; Coumarin-based ERα antagonists; In vitro antiproliferative evaluation; In vivo anticancer evaluation; Synthesis.

New twelve in silico designed coumarin-based ERα antagonists were synthesized and confirmed as selective ERα antagonists, showing potencies ranging from single-digit nanomolar to picomolar. The hits were confirmed as selective estrogen receptor modulators and validated as antiproliferative agents using MCF-7 breast cancer cell lines exerting from picomolar to low nanomolar potency, at the same time showing no agonistic activity within endometrial cell lines. Their mechanism of action was inspected and revealed to be through the inhibition of the Raf-1/MAPK/ERK signal transduction pathway, preventing hormone-mediated gene expression on either genomic direct or genomic indirect level, and stopping the MCF-7 cells proliferation at G0/G1 phase. In vivo experiments, by means of the per os administration to female Wistar rats with pre-induced breast cancer, distinguished six derivatives, 3DQ-4a, 3DQ-2a, 3DQ-1a, 3DQ-1b, 3DQ-2b, and 3DQ-3b, showing remarkable potency as tumor suppressors endowed with optimal pharmacokinetic profiles and no significant histopathol. profiles. The presented data indicate the new compounds as potential candidates to be submitted in clin. trials for breast cancer therapy.

European Journal of Medicinal Chemistry published new progress about Antiestrogens. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, HPLC of Formula: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Song, Xinjian published the artcileA highly specific and ultrasensitive probe for the imaging of inflammation-induced endogenous hypochlorous acid, Safety of 4-Methoxy-N-methylaniline, the main research area is two photon 14fluorescence imaging inflammation induced hypochlorous acid.

A turn-on two-photon fluorescent probe HCA-Green (I) for hypochlorous acid (HOCl) was synthesized using 4-methylamino-1,8-naphthalimide (MNA) as a two-photon fluorophore and p-hydroxyaniline as a leaving-recognition domain. Both the probe and the fluorophore were studied under one- and two-photon excitation modes. The fluorescence intensity of the probe was enhanced by �29-fold and �93-fold under one-photon and two-photon excitation, resp., after reacting with HOCl. A maximal two-photon action cross-section of 50 GM was obtained under excitation at 810 nm. The probe exhibited high sensitivity with a detection limit of 42.3 nM, as well as high selectivity, low cytotoxicity, and good photostability. Two-photon microscopy (TPM) was conducted to visualize HOCl levels in living cells and tissues. The production of endogenous HOCl induced by lipopolysaccharide-mediated inflammation was successfully monitored with this probe.

Analyst (Cambridge, United Kingdom) published new progress about Animal tissue. 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Safety of 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Criado-Reyes, Joaquin published the artcileThe role of borosilicate glass in Miller-Urey experiment, Safety of 3,5-Diamino-1,2,4-triazole, the main research area is borosilicate glass Miller Urey atm pollution.

We have designed a set of experiments to test the role of borosilicate reactor on the yielding of the Miller-Urey type of experiment Two experiments were performed in borosilicate flasks, two in a Teflon flask and the third couple in a Teflon flask with pieces of borosilicate submerged in the water. The experiments were performed in CH4, N2, and NH3 atmosphere either buffered at pH 8.7 with NH4Cl or unbuffered solutions at pH ca. 11, at room temperature The Gas Chromatog.-Mass Spectroscopy results show important differences in the yields, the number of products, and mol. weight In particular, a dipeptide, multi-carbon dicarboxylic acids, PAHs, and a complete panel of biol. nucleobases form more efficiently or exclusively in the borosilicate vessel. Our results offer a better explanation of the famous Miller′s experiment showing the efficiency of borosilicate in a triphasic system including water and the reduced Miller-Urey atm.

Scientific Reports published new progress about Air pollution. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Safety of 3,5-Diamino-1,2,4-triazole.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Criado-Reyes, Joaquin published the artcileThe role of borosilicate glass in Miller-Urey experiment, Recommanded Product: 3,5-Diamino-1,2,4-triazole, the main research area is borosilicate glass Miller Urey atm pollution.

We have designed a set of experiments to test the role of borosilicate reactor on the yielding of the Miller-Urey type of experiment Two experiments were performed in borosilicate flasks, two in a Teflon flask and the third couple in a Teflon flask with pieces of borosilicate submerged in the water. The experiments were performed in CH4, N2, and NH3 atmosphere either buffered at pH 8.7 with NH4Cl or unbuffered solutions at pH ca. 11, at room temperature The Gas Chromatog.-Mass Spectroscopy results show important differences in the yields, the number of products, and mol. weight In particular, a dipeptide, multi-carbon dicarboxylic acids, PAHs, and a complete panel of biol. nucleobases form more efficiently or exclusively in the borosilicate vessel. Our results offer a better explanation of the famous Miller′s experiment showing the efficiency of borosilicate in a triphasic system including water and the reduced Miller-Urey atm.

Scientific Reports published new progress about Air pollution. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Recommanded Product: 3,5-Diamino-1,2,4-triazole.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tian, Shuai published the artcileNew Theoretical Insights into the Atmospheric Chemistry of Methyl Chavicol Initiated by OH and NO3 Radicals, Application of 4-Methoxyphenylacetic acid, the main research area is atm chem methyl chavicol initiated OH NO3 radical.

Me chavicol, as a volatile oxygenated aromatic biogenic volatile organic compound (BVOC), is emitted in large quantities from a variety of plants. Currently, the high second organic aerosol (SOA) yield (40%) from photochem. oxidation of Me chavicol and its unclear formation mechanism have attracted enormous research interest. In this study, we conducted an in-depth theor. investigation on the atm. oxidation processes of Me chavicol initiated by OH and NO3 radicals using quantum chem. methods. The formation mechanisms for its highly oxidized multifunctional products, such as 2-hydroxy-3-(4-methoxyphenyl)propanal, 2-hydroxy-3-(3-hydroxy-4-methoxyphenyl)propanal, 1-hydroxy-3-(4-methoxyphenyl)propan-2-one, and 1-hydroxy-3-(3-hydroxy-4-methoxyphenyl)propan-2-one, have been clarified for the first time, which were detected in the SOA components in the chamber experiment of photo-oxidation of Me chavicol. Hence, gas-phase atm. oxidation of Me chavicol is a probable major contributor to SOA formation arising from biogenic emissions of Me chavicol. The calculated rate coefficient for the gas-phase reaction of Me chavicol with OH radicals is 3.06 × 10-11 cm3 mol.-1 s-1 at 298 K and 1 atm, and the total branching ratios of the formation of IM2, IM3, IM8, IM9, IM10, and IM11 account for the largest proportion (95.18%) of overall branching ratios. The lifetime of Me chavicol with respect to the OH radical is determined to be 4.54 h, indicating a potential effect of Me chavicol photo-oxidation on atm. photochem. and SOA formation relatively far from where it is emitted.

ACS Earth and Space Chemistry published new progress about Air pollution. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Application of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Verevkin, Sergey P. published the artcileWebbing a network of reliable thermochemistry around lignin building blocks: tri-methoxy-benzenes, Application of 1,3-Dimethoxybenzene, the main research area is lignin building block thermochem.

Methoxy-substituted benzenes are the simplest fragments from the lignin separation feedstock. Extensive exptl. thermochem. studies of these compounds were carried out, including vapor pressure measurements, combustion and differential scanning calorimetry. These data were evaluated using empirical, semi-empirical and quantum chem. methods. The consistent sets of evaluated thermodn. data were used to design the method for predicting enthalpies of vaporization and enthalpies of formation of di- and tri-substituted benzenes. It has been found that the agglomeration of substituents on the benzene ring has dramatic consequences for the energetics of the mol. (in terms of the enthalpy of formation), as well as for the energetics of intermol. interactions (in terms of the enthalpy of vaporization). These observations are essential to reliably assess the energetics of the mols. that appear in reaction products of lignin transformations in value-adding chems. and materials.

RSC Advances published new progress about Agglomeration. 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Application of 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Siccama, Joanne W. published the artcileThe effect of partial replacement of maltodextrin with vegetable fibres in spray-dried white asparagus powder on its physical and aroma properties, Application In Synthesis of 21834-92-4, the main research area is maltodextrin vegetable fiber asparagus spray drying aroma; Asparagus fibres; GC–MS; Maltodextrin; Metabolomics; Spray drying; Volatiles retention.

Asparagus concentrate was spray-dried in different carrier formulations in which maltodextrin was partially replaced by cellulose-based carriers, i.e. asparagus fiber, citrus fiber or microcrystalline cellulose. This replacement was limited to a maximum level of 3% weight/weight for asparagus and citrus fibers, and 10% weight/weight for microcrystalline cellulose, due to fiber insolubility and increased viscosity of the feed. Powders obtained from feed solutions with an initial solids content of 40% weight/weight showed better phys. properties and aroma retention than 30% weight/weight Partial replacement of maltodextrin by cellulose-based carriers resulted in powders with similar phys. properties as the control and did not detrimentally influence the aroma profiles as analyzed by headspace solid-phase microextraction and gas chromatog.-mass spectrometry. This research shows that fiber obtained from asparagus waste streams could potentially be used as a carrier to produce spray-dried asparagus powder with retained key asparagus volatiles such as 2-methoxy-3-iso-Pr pyrazine.

Food Chemistry published new progress about Agglomeration. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Application In Synthesis of 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hughes, David T. published the artcileFunctional and nonfunctional forms of CquiOR91, an odorant selectivity subunit of Culex quinquefasciatus, Related Products of isoquinoline, the main research area is Culex odorant receptors 91 selectivity; Xenopus oocytes; electrophysiology; insect; olfaction; polymorphism; receptor.

In Culex quinquefasciatus, CquiOR91 is the ortholog of 2 larvae-specific odorant receptors (ORs) from Anopheles gambiae (AgamOr40, previously shown to respond to several odorant ligands including the broad-spectrum repellent N,N-diethyl-3-methylbenzamide, DEET) and Aedes aegypti (AaegOr40). When we cloned full-length CquiOR91 from a Culex quinquefasciatus larval head RNA sample, we found 2 alleles of this OR, differing at 9 residues. Functional anal. using the Xenopus oocyte expression system and 2-electrode voltage clamp electrophysiol. revealed one allele (CquiOR91.1) to be nonfunctional, whereas the other allele (CquiOR91.2) was functional. Receptors formed by CquiOR91.2 and CquiOrco responded to (-)-fenchone, (+)-fenchone, and DEET, similar to what has been reported for AgamOr40. We also identified 5 novel odorant ligands for the CquiOR91.2 + CquiOrco receptor: 2-isobutylthiazole, veratrole, eucalyptol, d-camphor, and safranal, with safranal being the most potent. To explore possible reasons for the lack of function for CquiOR91.1, we generated a series of mutant CquiOR91.2 subunits, in which the residue at each of the 9 polymorphic residue positions was changed from what occurs in CquiOR91.2 to what occurs in CquiOR91.1. Eight of the 9 mutant versions of CquiOR91.2 formed functional receptors, responding to (-)-fenchone. Only the CquiOR91.2 Y183C mutant was nonfunctional. The reverse mutation (C183Y) conferred function on CquiOR91.1, which became responsive to (-)-fenchone and safranal. These results indicate that the “”defect”” in CquiOR91.1 that prevents function is the cysteine at position 183.

Chemical Senses published new progress about Aedes aegypti. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Nakamura, Kenji published the artcileA 90-day subchronic toxicity study of 5-methyl-2-phenyl-2-hexenal in F344 rats, Formula: C13H16O, the main research area is subchronic toxicity MPH adverse effects; 5-Methyl-2-phenyl-2-hexenal; F344 rats; Flavoring agent; Subchronic toxicity.

5-Methyl-2-phenyl-2-hexenal (MPH) has been used as a flavoring agent. In the present study, we performed a subchronic toxicity study in male and female F344 rats with oral administration of MPH by gavage at 0, 8, 24 and 70 mg/kg body weight (BW)/day for 90 days. No mortality or clin. signs were observed during the exptl. period. Body weight and food consumption for all treated groups of both sexes were essentially the same as for the resp. control groups. Hematol. examination demonstrated significant decreases in monocyte counts for females given 24 and 70 mg/kg BW/day. However, these changes were not substantial and no related histopathol. changes were observed, suggesting that these changes were not toxicol. significant. Among organ weights, the absolute and/or relative weights of testes and liver were significantly increased in the 70 mg/kg BW/day groups of males and females, resp., but no related histopathol. changes were observed, suggesting that these changes did not reflect adverse effects. In addition, no treatment-related histopathol. changes were observed for any of the tissues examined Based on the overall data, the no-observed-adverse-effect level (NOAEL) for MPH was determined to be 70 mg/kg BW/day, the highest dose tested, in both male and female rats.

Food and Chemical Toxicology published new progress about Adrenal gland. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Formula: C13H16O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ha, Hunmoon published the artcileDegradation of the long-resistant pharmaceutical compounds carbamazepine and diatrizoate using mixed microbial culture, Product Details of C11H9I3N2O4, the main research area is long resistant carbamazepine diatrizoate degradation mixed microbial culture; Carbamazepine; DOC; HPLC; diatrizoate; mixed microbial culture.

The microbial degradation of two recalcitrant pharmaceutical compounds, carbamazepine (CBZ) and diatrizoate (DTZ), was studied in laboratory batch experiments We used a defined mixed microbial culture comprising four distinct microbial species that were previously known to have high decomposition capacity toward recalcitrant substances. Biol. decomposition in liquid phase cultures for either CBZ or DTZ, or in a combination of the two, was conducted for 12 days. DTZ and CBZ were degraded by 43.2% and 60%, resp. from an initial concentration of 100μg L-1. When degradation was assessed using a mixture of the two compounds, the initial degradation rates of CBZ and DTZ were lower than those observed in the single-compound study. However, the final cumulative removal efficiency was very similar. The extent of dissolved organic carbon (DOC) removal was correlated with the degradation of the pharmaceuticals.

Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering published new progress about Acinetobacter. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Product Details of C11H9I3N2O4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem