Day: June 9, 2021

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Application In Synthesis of 3-Methyldihydrofuran-2(3H)-one. Introducing a new discovery about 1679-47-6, Name is 3-Methyldihydrofuran-2(3H)-one

The successive treatment of the N,N-disubstituted 4-hydroxy-2- methylbutanamide 2a with lithium diisopropylamide (LDA) and diphenyl phosphorochloridate (DPPCl) led to the 1-methylcyclopropanecarboxamide 10 in good yield. This base-catalyzed cyclization offers a new approach to cyclopropanecarboxamides. Under similar conditions, the N-monosubstituted 4-hydroxy-2-methylbutanamide 2b gave the 3-methylpyrrolidin-2-one 11. The structure of the cyclopropanecarboxamide 10 was established by X-ray crystallography. Copyright

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

4971-56-6, Name is Furan-2,4(3H,5H)-dione, belongs to tetrahydrofurans compound, is a common compound. SDS of cas: 4971-56-6In an article, once mentioned the new application about 4971-56-6.

The present invention relates to compositions and methods for inhibiting nonenzymatic cross-linking (protein aging). Accordingly, a composition is disclosed which comprises substituted or unsubstituted tetramic and tetronic acids capable of inhibiting the formation of advanced glycosylation endproducts of target proteins by reacting with a carbonyl moiety of an early glycosylation product of such target proteins formed by their initial glycosylation. The method comprises contacting the target protein with the composition. Both industrial and therapeutic applications for the invention are envisioned, as food spoilage and animal protein aging can be treated.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Recommanded Product: 453-20-3. Introducing a new discovery about 453-20-3, Name is 3-Hydroxytetrahydrofuran

The present invention encompasses compounds of formula (I) wherein the groups A, R and q are defined in claim 1, their use as inhibitors of IGF-1 R, pharmaceutical compositions which contain compounds of this kind and their use as medicaments, especially as agents for treatment and/or prevention of oncological diseases.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Related Products of 4971-56-6, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.4971-56-6, Name is Furan-2,4(3H,5H)-dione, molecular formula is C4H4O3. In a article，once mentioned of 4971-56-6

A series of lactone 1,4-dihydroquinoline derivatives 4 (4 and 4aa?4cm) was screened for in vitro antileishmanial activity against the promastigote form of Leishmania (Leishmania) amazonensis. Screening results indicate that all of the synthesized compounds significantly reduced the growth of promastigote forms of promastigotes of L. (L.) amazonensis. The cytotoxicity of the most active compounds was also measured on peritoneal macrophage cells. Compounds 4ah and 4bn showed better activities than other derivatives with IC50 values of 6.22 and 9.05 muM, respectively, with selectivity index 22 and 15 times less toxicity to macrophages cells than to parasites, respectively. The experimental data propose that the compounds may be further investigated against amastigote forms and may contribute to the search of new candidates drugs for treatment of cutaneous leishmaniasis.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Quality Control of (R)-Tetrahydrofuran-3-amine 4-methylbenzenesulfonate, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 111769-27-8, name is (R)-Tetrahydrofuran-3-amine 4-methylbenzenesulfonate. In an article，Which mentioned a new discovery about 111769-27-8

Background and Purpose: Microsomal PGE synthase-1 (mPGES-1), the inducible synthase that catalyses the terminal step in PGE2 biosynthesis, is of high interest as therapeutic target to treat inflammation. Inhibition of mPGES-1 is suggested to be safer than traditional NSAIDs, and recent data demonstrate anti-constrictive effects on vascular tone, indicating new therapeutic opportunities. However, there is a lack of potent mPGES-1 inhibitors lacking interspecies differences for conducting in vivo studies in relevant preclinical disease models. Experimental Approach: Potency was determined based on the reduction of PGE2 formation in recombinant enzyme assays, cellular assay, human whole blood assay, and air pouch mouse model. Anti-inflammatory properties were assessed by acute paw swelling in a paw oedema rat model. Effect on vascular tone was determined with human ex vivo wire myography. Key Results: We report five new mPGES-1 inhibitors (named 934, 117, 118, 322, and 323) that selectively inhibit recombinant human and rat mPGES-1 with IC50 values of 10?29 and 67?250 nM respectively. The compounds inhibited PGE2 production in a cellular assay (IC50 values 0.15?0.82 muM) and in a human whole blood assay (IC50 values 3.3?8.7 muM). Moreover, the compounds blocked PGE2 formation in an air pouch mouse model and reduced acute paw swelling in a paw oedema rat model. Human ex vivo wire myography analysis showed reduced adrenergic vasoconstriction after incubation with the compounds. Conclusion and Implications: These mPGES-1 inhibitors can be used as refined tools in further investigations of the role of mPGES-1 in inflammation and microvascular disease.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Electric Literature of 219823-47-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 219823-47-9, Name is (R)-Tetrahydrofuran-3-yl 4-methylbenzenesulfonate, molecular formula is C11H14O4S. In a Article，once mentioned of 219823-47-9

Primary and secondary alcohols were efficiently sulfonylated in the presence of silver(I) oxide and potassium iodide in dichloromethane. The sulfonylation occurs under mild, neutral reaction conditions. The ease of isolation of the final product presents a marked advantage over the known methodologies.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Reference of 4100-80-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4100-80-5, Name is 3-Methyldihydrofuran-2,5-dione, molecular formula is C5H6O3. In a Article，once mentioned of 4100-80-5

The double Mannich reaction of cyclic beta-keto esters with bis-(alkoxymethyl)alkylamines provides an efficient and versatile method for the construction of azabicyclo[3.3.1]nonanes and azabicyclo[3.2.1]octanes. The optimum conditions for efficient reaction involve use of the activator trichloromethylsilane in acetonitrile as solvent at ambient temperature. The utility of this synthetic method is further demonstrated by the facile synthesis of several AE ring analogues 39, 42 of the alkaloid methyllycaconitine by appendage of the key N-(methylsuccininimido)anthranilate pharmacophore to the N-(3-phenylpropyl)-substituted double Mannich adducts 18, 27. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Reference of 15833-61-1, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.15833-61-1, Name is (Tetrahydrofuran-3-yl)methanol, molecular formula is C5H10O2. In a article，once mentioned of 15833-61-1

A pharmacophore-based search led to the identification of thiazolopyridine ureas as a novel scaffold with antitubercular activity acting through inhibition of DNA Gyrase B (GyrB) ATPase. Evaluation of the binding mode of thiazolopyridines in a Mycobacterium tuberculosis (Mtb) GyrB homology model prompted exploration of the side chains at the thiazolopyridine ring C-5 position to access the ribose/solvent pocket. Potent compounds with GyrB IC 50 ? 1 nM and Mtb MIC ? 0.1 muM were obtained with certain combinations of side chains at the C-5 position and heterocycles at the C-6 position of the thiazolopyridine core. Substitutions at C-5 also enabled optimization of the physicochemical properties. Representative compounds were cocrystallized with Streptococcus pneumoniae (Spn) ParE; these confirmed the binding modes predicted by the homology model. The target link to GyrB was confirmed by genetic mapping of the mutations conferring resistance to thiazolopyridine ureas. The compounds are bactericidal in vitro and efficacious in vivo in an acute murine model of tuberculosis.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Reference of 87392-05-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.87392-05-0, Name is (R)-(+)-2-Tetrahydrofuroic acid, molecular formula is C5H8O3. In a Patent，once mentioned of 87392-05-0

Provided are a series of novel pyridine or pyrimidine derivatives which inhibit CDK9 and may be useful for the treatment of hyperproliferative diseases. In particular the compounds are of use in the treatment of proliferative disease such as cancer including hematological malignancies such as acute myeloid leukemia, multiple myeloma, chronic lymphocytic leukemia, diffuse large B cell lymphoma, Burkitt’s lymphoma, follicular lymphoma and solid tumors such as breast cancer, lung cancer, neuroblastoma and colon cancer.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Application of 219823-47-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 219823-47-9, Name is (R)-Tetrahydrofuran-3-yl 4-methylbenzenesulfonate, molecular formula is C11H14O4S. In a Patent，once mentioned of 219823-47-9

This invention relates to compounds represented by formula (I) wherein the variables are defined as herein above, which are useful for treating diseases and conditions mediated by the sodium D-glucose co-transporter (SGLT), e.g. diabetes. The invention also provides methods of treating such diseases and conditions, and compositions etc. for their treatment.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem