Category: oxazolidine

Reference of 189028-93-1, Chemical engineers work across a number of sectors, processes differ within each of these areas, but chemistry and chemical engineering roles are found throughout in the manufacturing process of chemical products. 189028-93-1, Name is (S)-1-(4-Fluorophenyl)-5-(2-oxo-4-phenyloxazolidin-3-yl)pentane-1,5-dione, molecular formula is C20H18FNO4

The present invention discloses a therapeutic agent for hyperlipidemia according to booklet of the mai bu preparation method, which belongs to the field of drug synthesis. In order to compound 2 as raw materials, through the carbonyl protection, cyclization, carbonyl reduction, deprotection of four-step synthesis step preparation according to their folds mai bu 1. Compared with the prior literature reported method, which avoids the use of natural titanium reagent, the synthesis step is reduced, the process stability is higher, and is suitable for mass production. (by machine translation)

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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H2789NO – PubChem

102029-44-7, Name is (R)-4-Benzyl-2-oxazolidinone, belongs to oxazolidine compound, is a common compound. Application In Synthesis of (R)-4-Benzyl-2-oxazolidinoneIn an article, once mentioned the new application about 102029-44-7.

The present invention relates to compounds of Formula (I), and pharmaceutically acceptable salts thereof, where Ri, R2, R3, R4, R5, R6, R7, Rs and m are as defined herein, pharmaceutical compositions comprising these compounds and methods of use of these compounds for treating a TGR5 mediated disease or condition.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1653NO – PubChem

Safety of Oxazolidin-2-one, Career opportunities within science and technology are seeing unprecedented growth across the world, and those who study chemistry or another natural science at university now have increasingly better career prospects. In a article, 497-25-6, molcular formula is C3H5NO2, introducing its new discovery.

A series of novel HIV integrase inhibitors active against rategravir resistant strains are reported. Initial SAR studies revealed that activities against wild-type virus were successfully maintained at single digit nanomolar level with a wide range of substitutions. However, inclusion of nitrogen-based cyclic substitutions was crucial for achieving potency against mutant viruses. Several compounds with excellent activities against wild-type virus as well as against the viruses with the mutations Q148H/G140S or N155H/E92Q were reported.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H723NO – PubChem

Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation. Application of 108149-65-1 108149-65-1

A short and efficient synthetic route to four stereoisomeric 3-acetoxycyclopentenylglycine derivatives from l-serine has been developed. The method features a stereoselective conjugate addition and ring-closing metathesis as key steps. Georg Thieme Verlag Stuttgart · New York.

Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. Keep reading other articles of 108149-65-1. Application of 108149-65-1

Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H2304NO – PubChem

13590-42-6, Name is (S)-Benzyl 2-(2,5-dioxooxazolidin-4-yl)acetate, belongs to oxazolidine compound, is a common compound. HPLC of Formula: C12H11NO5In an article, once mentioned the new application about 13590-42-6.

The invention relates to a kind of the acid is sensitive of amphiphilic triblock polymer, the polymer is composed of polyethylene glycol – acid sensitive section 1 – acid sensitive section 2 triblock copolymer, the states the acid sensitive section 1 is polyacrylamide benzene boronic acid, the states the acid sensitive section 2 is dimethyl ethylenediamine gathers the ammonia acid radical, said polyethylene glycol has a molecular weight of 2000 – 5000, the states the acid sensitive section 1 has a molecular weight of 2000 – 6000, the states the acid sensitive section 2 has a molecular weight of 1000 – 2000. The invention also involves the above-mentioned the acid is sensitive of amphiphilic triblock polymer for the preparation of a pharmaceutical and co-transmission liquid fluorocarbon polymer nano vesicle in the application, the nanometer vesicle has uniform nanometer diameter, can be stable in vivo circulation and enriched in tumor site; nano-vesicle of the present invention also has good enhanced ultrasound developing ability thus in diagnostic ultrasound under the conditions of the ultrasonic imaging application, the polymer nano-vesicle also having ultrasonic sensitivity, in the low frequency high energy ultrasonic irradiation of excitation cavitation effect under the condition of, to achieve controlled release of the medicament. (by machine translation)

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Oxazolidine – Wikipedia,
Oxazolidine | C3H2399NO – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. Electric Literature of 1676-86-4, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 1676-86-4

A near infrared fluorescent polymeric drug delivery system (NIRF DDS) with pH-responsive drug release properties has been designed and developed. This material was prepared by chemical conjugation of the anticancer drug doxorubicin and hydrophobic aminocyanine dye to triblock copolypeptide via hydrazone and amide bonds, respectively. Conjugation with aminocyanine shows almost no toxicity of the material, while conjugation with doxorubicin induces pronounced toxicity on the original biocompatible material. The pH sensitive drug release nature of the near infrared fluorescent polymeric drug (NIRF prodrug) was confirmed by accelerated drug release at pH of 5.0 via an in vitro drug release experiment and gradual drug cleavage from the NIRF prodrug during a confocal laser scanning microscopic (CLSM) experiment. The CLSM experiment also reveals that the released drug subsequently migrated to the nucleus, while the polymeric residue still remained in cytoplasm, indicating that the as-prepared polymer can be a promising candidate for theranosis of cancer.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H2747NO – PubChem

Formula: C3H5NO2, In chemical reaction engineering, simulations are useful for investigating and optimizing a particular reaction process or system. 497-25-6, Name is Oxazolidin-2-one, molecular formula is C3H5NO2. In a Article，once mentioned of 497-25-6

Composites were prepared using epoxy resin (ER), carboxyl-terminated butadiene acrylonitrile copolymer (CTBN) and hydroxyl-terminated polybutadiene (HTPB), in different proportions. A chemical link between the HTPB and the epoxy resin was promoted employing tolylene diisocyanate (TDI). The reactions between elastomers and epoxy resin were followed by FTIR. The mechanical properties of the composites were evaluated and the microstructure was investigated through scanning electronic microscopy (SEM). The results showed that the impact resistance of CTBN-modified ER was superior to that of the pure epoxy resin. For the composites with HTPB, the impact resistance increased with elastomer concentration up to three parts per hundred parts of resin (phr). Higher concentrations of HTPB resulted in larger particles and gave lower impact values.

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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H925NO – PubChem

102029-44-7, Name is (R)-4-Benzyl-2-oxazolidinone, belongs to oxazolidine compound, is a common compound. Electric Literature of 102029-44-7In an article, once mentioned the new application about 102029-44-7.

A short efficient total synthesis of 10-deoxymethynolide (2c), the aglycon of 10-deoxymethymycin (1c), has been accomplished in 16 steps and 12% overall yield from (S)-3-O-p-toluenesulfonyl-3-hydroxy-2-methylpropanal (15c). The synthesis features an expeditious preparation of (+)-5a, a synthetic equivalent of the Prelog-Djerassi lactonic acid, and the construction of a 12-membered lactone through an intramolecular Nozaki- Hiyama-Kishi coupling reaction.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1983NO – PubChem

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Electric Literature of 497-25-6. Introducing a new discovery about 497-25-6, Name is Oxazolidin-2-one

Nickel(0)-promoted carboxylation of N-allenylamides (allenamides) with carbon dioxide proceeded via a nickelalactone intermediate to give beta-amino acid derivatives. It was also found that the regioselectivity at the oxidative addition stage was strongly affected by the substituents on the allene part. Georg Thieme Verlag Stuttgart. New York.

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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H948NO – PubChem

Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. Application In Synthesis of Oxazolidin-2-one,

Carbon dioxide (CO2) is one of the main greenhouse gases that can be utilized as a useful C1 source owing to its abundance, non-toxicity, and renewability. In fact, the transformation of carbon dioxide into valuable organic molecules has attracted considerable attention over the past decades. One-pot multicomponent reactions generally proceed with more than two different raw materials reacting in one pot, thus simplifying the reaction in operation and workup. In this regard, a three-component reaction of CO2, propargylic alcohols, and nucleophiles such as amines, water, and alcohols, to prepare useful carbonyl compounds (e.g., carbamates, oxazolidinones, alpha-hydroxyl ketones, and organic carbonates) is particularly appealing because of the advantages of step and atom economy. From a mechanistic point of view, the three-component reaction of CO2, a propargylic alcohol, and a nucleophile is a type of cascade reaction, involving the carboxylative cyclization of CO2 and propargylic alcohol, and subsequent reaction of a nucleophile with the in situ formed alpha-alkylidene cyclic carbonate. On the other hand, reactions involving CO2 are generally thermodynamically unfavorable because of the thermodynamic stability and kinetic inertness of CO2. Cyclic carbonates are widely used in organic synthesis, and their preparation from vicinal diols and CO2 represents a green synthetic method because biomass is utilized as the source of vicinal diols. However, the low yields of cyclic carbonates are obtained in most cases because of thermodynamic limitations and deactivation of the catalyst by water, which is the co-product of cyclic carbonates. The most commonly used method to improve the yields of cyclic carbonates involves the addition of dehydrating agents. However, decreased selectivity is often observed because of the side reaction of vicinal diols with the hydrolysis products of the dehydrating agent. In addition, the reaction of 2-aminoethanols and CO2 to obtain the corresponding 2-oxazolidinones also encounters the analogous thermodynamic limitation. To solve this problem, an efficient three-component reaction of CO2, propargylic alcohols, and nucleophiles was developed to offer thermodynamically favorable ways for converting CO2 into cyclic carbonates and 2-oxazolidinones with vicinal diols or 2-aminoethanols as nucleophiles. In this strategy, water is not generated and the alpha-alkylidene cyclic carbonate formed from CO2 and propargylic alcohol as the actual carbonyl source reacts with vicinal diol or 2-aminoethanol to give the corresponding cyclic carbonates or 2-oxazolidinones in high yields and selectivity with the simultaneous formation of hydroxyketones. This review aims to summarize and discuss the recent advances in three-component reactions of CO2, propargylic alcohols, and nucleophiles to prepare various carbonyl compounds promoted by both metal catalysts and organocatalysts.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H1216NO – PubChem