Tag: M.W=200-250

Lee, Hae Won published the artcileA Phase I study to characterize the multiple-dose pharmacokinetics, pharmacodynamics and safety of new enteric-coated triflusal formulations in healthy male volunteers, SDS of cas: 328-90-5, the publication is Expert Opinion on Drug Metabolism & Toxicology (2011), 7(12), 1471-1479, database is CAplus and MEDLINE.

Objectives: An enteric-coated formulation of triflusal (triflusal EC), an antiplatelet agent, was developed to reduce the high incidence of gastrointestinal adverse events (AEs). The aim of this study is to compare the pharmacokinetics, pharmacodynamics and safety of triflusal EC with triflusal in healthy Korean male subjects to determine bioequivalence and non-inferiority for the purposes of marketing approval. Methods: A randomized, open-label, two-period, crossover study was conducted in 38 subjects. Either triflusal EC or triflusal was administered orally as a single 900 mg loading dose (day 1) followed by eight 600 mg/day maintenance doses on days 2 – 9, with a 13-day washout period. The plasma concentrations of 2-hydroxy-4-trifluoromethyl benzoic acid (HTB), the predominant active metabolite of triflusal, were assessed after administration of the loading dose, using HPLC/MS/MS. The platelet aggregation response to arachidonic acid was determined using turbidimetric aggregometry. Results: The 90% CIs, for the geometric mean ratios of the log-transformed AUC_τ and C_max of HTB were seen to be within the predetermined range of 0.8 – 1.25. Triflusal EC was also shown to be non-inferior in its anti-aggregatory effect. No serious AEs were reported during this study. Conclusions: The pharmacokinetic and pharmacodynamic profiles of the two triflusal formulations met the requirements for bioequivalence and non-inferiority, resp. Both formulations were well tolerated.

Expert Opinion on Drug Metabolism & Toxicology published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C8H5F3O3, SDS of cas: 328-90-5.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhang, Da-Wei published the artcileEfficient synthesis of bis-isoxazole ethers via 1,3-dipolar cycloaddition catalysed by Zn/Zn²⁺ and their antifungal activities, Computed Properties of 438565-33-4, the publication is Chemical Papers (2015), 69(11), 1500-1511, database is CAplus.

A series of novel bis-isoxazole ether compounds I [R = 3-pyridyl, 3-O₂NC₆H₄, 4-O₂NC₆H₄, 4-(H₃C)₃CC₆H₄; R¹ = 4-C(CH₃)₃, 3-NO₂, (Z)-CH=CHC₆H₅, etc.] were synthesized starting from different substituted aldehydes RCHO and R¹CHO via 1,3-dipolar cycloaddition using Zn/Zn²⁺ as a catalyst. In addition, the antimicrobial properties of synthesized products were investigated. The synthesized compounds I exhibited significant antifungal activities in comparison with the standard drugs, fluconazole and itraconazole. It was found that Candida albicans was sensitive to 2-substituted Ph bis-isoxazole ethers bearing pyridyl I [R¹ = 2-OCH₃, 2-Cl].

Chemical Papers published new progress about 438565-33-4. 438565-33-4 belongs to alcohols-buliding-blocks, auxiliary class Isoxazole,Chloride,Benzene,Alcohol, name is 3-(2-Chlorophenyl)-5-isoxazolemethanol, and the molecular formula is C12H17NS2, Computed Properties of 438565-33-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Tuan, Nguyen Ngoc published the artcileCatabolism of 4-alkylphenols by Acinetobacter sp. OP5: Genetic organization of the oph gene cluster and characterization of alkylcatechol 2,3-dioxygenase, Quality Control of 1139-46-4, the publication is Bioresource Technology (2013), 420-428, database is CAplus and MEDLINE.

In this study, a specific PCR primer set was successfully designed for alkylcatechol 2, 3-dioxygenase genes and applied to detect the presence of this biomarker in 4-t-octylphenol-degrading Acinetobacter sp. strain OP5. A gene cluster (ophRBA1A2A3A4A5A6CEH) encoding multicomponent phenol hydroxylase and alkylcatechol 2,3-dioxygenase was then cloned from this strain and showed the highest homol. to those involved in the published medium-chain alkylphenol gene clusters. The pure enzyme of recombinant cell harboring ophB showed meta-cleavage activities for 4-methylcatechol (1,435%), 4-ethylcatechol (982%), catechol (100%), 4-t-butylcatechol (16.6%), and 4-t-octylcatechol (3.2%). The results suggest that the developed mol. technique is useful and easy in detection of medium/long-chain alkylphenol degradation gene cluster. In addition, it also provides a better understanding of the distribution of biodegradative genes and pathway for estrogenic-active long-chain alkylphenols in bacteria.

Bioresource Technology published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C8H6N2O3, Quality Control of 1139-46-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yamaguchi, Shigehiro published the artcileChanges of organized solution (microemulsion) structure with small change in amphiphile composition, Formula: C11H24O3, the publication is Yukagaku (1989), 38(2), 157-60, database is CAplus.

In the system of 8 weight% CaCl₂ aqueous/C₁₂H₂₅OCH₂CH₂SO₄Ca_0.5/iso-C₈H₁₇OCH₂CH(OH)CH₂OH/decane with only 3 weight% of total amphiphiles, it was possible to obtain only one phase region of microemulsion whose solvents swelled by 97 weight% (water + oil). The composition of water and oil varied over the entire range with slight changes in the amphiphile ratio from 0.38 to 0.42. Self-diffusion measurements indicated the microemulsion microstructure changed from O/W (hydrophilic) to W/O (lipophilic) by varying the HLB of the amphiphiles. A comparison of these results with change in temperature in a nonionic surfactant system showed that the change in the ratio of hydrophilic amphiphile and lipophilic amphiphile (from 0.38 to 0.42) had the same effect as that in HLB as making the temperature 30° in the nonionic surfactant system.

Yukagaku published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C44H28ClFeN4, Formula: C11H24O3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Xu, Ningxin published the artcileCopper-Catalyzed Stereospecific Transformations of Alkylboronic Esters, Recommanded Product: 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Journal of the American Chemical Society (2022), 144(26), 11546-11552, database is CAplus and MEDLINE.

Cu-catalyzed stereospecific cross-couplings of boronic esters are reported. Boron “ate” complexes derived from pinacol boronic esters and tert-Bu Li undergo stereospecific transmetalation to Cu cyanide, followed by coupling with alkynyl bromides, allyl halides, propargylic halides, β-haloenones, hydroxylamine esters, and acyl chlorides. Through this simple transformation, com. available inexpensive compounds can be employed to convert primary and secondary alkylboronic esters to a wide array of synthetically useful compounds

Journal of the American Chemical Society published new progress about 608534-44-7. 608534-44-7 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C14H12O2, Recommanded Product: 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jiao, Shulin published the artcileThe synthesis of an antifungal 1,2,4-triazole drug and the establishment of a drug delivery system based on zeolitic imidazolate frameworks, Related Products of alcohols-buliding-blocks, the publication is New Journal of Chemistry (2019), 43(47), 18823-18831, database is CAplus.

Invasive fungal infections (IFIs) are deadly fungal infections with a high mortality rate, particularly in patients who have undergone prolonged use of chemotherapy drugs, transplant surgery and so on. Among them, Candida albicans has attracted great attention as an important pathogen. Triazoles such as voriconazole and fluconazole are considered to be some of the most effective and widely used antifungal drugs. However, the resistance of fungi to these drugs and the toxicity of triazoles to normal human cells are the main reasons for the difficulty of treating invasive fungal infections. In this paper, a novel trifluoromethyl-containing triazole compound, TPHMB, was designed and synthesized for the first time. The single crystal was obtained by the solution evaporation method, and its mol. structure was determined by a single crystal diffractometer. The activity against Candida albicans was detected (MIC₉₀ = 8μg ml^-1). In addition, for the first time, we used the metal organic framework ZIF-8 to establish an effective, low-toxicity and pH-responsive antifungal drug delivery system with less side effects via reducing the non-specific aggregation in normal tissues and improving water solubility Detailed material characterizations confirmed the successful encapsulation of TPHMB in the ZIF-8 matrix, which demonstrated good drug release at pH = 5; plate count was used to find the excellent synergy of ZIF-8 against Candida albicans. This study not only provides a reference for the development of new triazole drugs, but also helps develop an effective delivery system of such drugs in vivo to achieve an effective treatment of fungal infections.

New Journal of Chemistry published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C8H5F3O3, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

He, Xuefeng published the artcileHighly efficient synthesis of benzodioxins with a 2-site quaternary carbon structure by secondary amine-catalyzed dual Michael cascade reactions, Name: 2-Hydroxy-4-(trifluoromethyl)benzoic acid, the publication is Organic & Biomolecular Chemistry (2018), 16(30), 5533-5538, database is CAplus and MEDLINE.

Salicylic acids and substituted ynones were employed as substrates to afford a class of valuable 4H-benzo[d][1,3]dioxin-4-ones with a 2-site quaternary carbon structure in up to 92% yield by secondary amine-catalyzed dual Michael cascade reactions under mild reaction conditions. The α,β-unsaturated ketone as the key intermediate in the cascade process was successfully separated and characterized. As a result, a new reaction route for ynone species is demonstrated, which is totally different from the existing allenamine activation model.

Organic & Biomolecular Chemistry published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C8H5F3O3, Name: 2-Hydroxy-4-(trifluoromethyl)benzoic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Liu, Huifang published the artcilePhotocatalytic Cleavage of C-C Bond in Lignin Models under Visible Light on Mesoporous Graphitic Carbon Nitride through π-π Stacking Interaction, Related Products of alcohols-buliding-blocks, the publication is ACS Catalysis (2018), 8(6), 4761-4771, database is CAplus.

Photocatalysis is a potentially promising approach to harvest aromatic compounds from lignin. However, the development of an active and selective solid photocatalyst is still challenging for lignin transformation under ambient conditions. We herein report a mild photocatalytic oxidative strategy for C-C bond cleavage of lignin β-O-4 and β-1 linkages using a mesoporous graphitic carbon nitride catalyst. Identifications by solid-state NMR techniques and d. functional theory (DFT) calculations indicate that π-π stacking interactions are most likely present between the flexible carbon nitride surface and lignin model mol. Besides, low charge recombination efficiency and high sp. surface area (206.5 m² g^-1) of the catalyst also contribute to its high catalytic activity. Mechanistic investigations reveal that photogenerated holes, as the main active species, trigger the oxidation and C-C bond cleavage of lignin models. This study sheds light on the interaction between complex lignin structures and the catalyst surface and provides a new strategy of photocatalytic cleavage of lignin models with heterogeneous photocatalysts.

ACS Catalysis published new progress about 70110-65-5. 70110-65-5 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Alcohol,Ether,Benzene Compounds, name is 2-Phenoxy-1-phenylpropane-1,3-diol, and the molecular formula is C15H16O3, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Feng, Fan published the artcileDesign, Ultrasonic-assisted Synthesis and Evaluation In vitro Antimicrobial Activity of Bis-isoxazole Derivatives Bearing Chloro-pyridinyl Group, Computed Properties of 438565-33-4, the publication is Chemical Research in Chinese Universities (2021), 37(3), 668-673, database is CAplus.

An ultrasonic-assisted synthesis of bis-isoxazole derivatives was developed. Eight 3-(6-chloropyridin-3-yl)-5-{[(3-arylisoxazol-5-yl)methoxy]methyl}isoxazoles I [R¹ = H, 4-Me, 2-Cl, etc.] were synthesized by 1,3-dipolar cycloaddition reaction between substituted isoxazolyl alkyne compounds and 6-chloro-N-hydroxynicotinimidoyl chloride. The structures of the synthesized compounds were confirmed by HRMS, FTIR, ¹H and ¹³C NMR spectroscopy. Wherein, the antifungal and antibacterial activities of target compounds were tested. The synthesized compounds I [R¹ = 2-methoxy, 2-Cl] exhibited better antifungal activity in comparison with the standard drug itraconazole. The min. inhibitory concentrations(MICs) of compound I [R¹ = 2-methoxy, 2-Cl] were both 4μg/mL against Candida albicans ATCC 10231.

Chemical Research in Chinese Universities published new progress about 438565-33-4. 438565-33-4 belongs to alcohols-buliding-blocks, auxiliary class Isoxazole,Chloride,Benzene,Alcohol, name is 3-(2-Chlorophenyl)-5-isoxazolemethanol, and the molecular formula is C10H8ClNO2, Computed Properties of 438565-33-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Mazellier, Patrick published the artcileTransformation of 4-tert-octylphenol by UV irradiation and by an H₂O₂/UV process in aqueous solution, Recommanded Product: 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, the publication is Photochemical & Photobiological Sciences (2003), 2(9), 946-953, database is CAplus and MEDLINE.

The transformation of 4-(1,1,3,3-tetramethylbutyl)phenol (4-tert-octylphenol; OP) upon irradiation at 253.7 nm and by hydroxyl radicals generated by the photolysis (λ_exc =253.7 nm) of H₂O₂ in wastewater was studied. The quantum yield of direct OP photolysis in pure aqueous solution was 0.058±0.004 in aerated conditions ([O₂] =272μM). The rate of photoreaction depends on O concentration; it increases with increasing [O₂]. 4-Tert-octylcatechol was identified as one of the degradation products, together with a dimeric structure. The probable mechanism of OP photolysis involves photoejection of an electron from the singlet state, leading to the formation of the 4-tert-octylphenoxyl radical. In the presence of H₂O₂, the degradation of octylphenol by hydroxyl radicals was observed The 2nd-order rate constant was (6.4±0.5) × 10⁹/M-s by direct measurement at various high concentrations of H₂O₂ and competitive kinetic measurements using atrazine as the competitor. The degradation products are 4-tert-octylcatechol and 2-hydroxy-5-tert-octylbenzoquinone. The later product may arise from the oxidation of 4-tert-octylcatechol by H₂O₂ or from a subsequent reaction of hydroxyl radicals with 4-tert-octylcatechol. Kinetic modeling when using either pure water or natural water simulated the elimination of 4-tert-octylphenol by UV and H₂O₂/UV processes.

Photochemical & Photobiological Sciences published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C14H22O2, Recommanded Product: 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts