196877-76-6

Upstream product

• 106-96-7 propargyl bromide 
• 38435-51-7 N-hydroxy-4-methoxy-benzenecarboximidoyl chloride 
• 3717-21-3 p-methoxyl benzaldoxime 
• 206055-86-9 3-(4-methoxyphenyl)-5-(hydroxymethyl)isoxazole 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 123-11-5 4-methoxy-benzaldehyde 

Downstream Products

• 1204422-46-7 4-{3-[3-(4-hydroxyphenyl)-4-ethylisoxazol-5-yl]propanoyl}amino-1-ethylpyrrole-3-carboxylic acid 
• 1204422-43-4 4-{3-[3-(4-Hydroxyphenyl)-4-ethylisoxazol-5-yl]-2-fluoropropanoyl}amino-1-ethylpyrrole-3-carboxylic acid 
• 1204423-80-2 3-[3-(4-Methoxyphenyl)-4-bromoisoxazol-5-yl]-2-fluoropropionic acid 
• 1204423-85-7 Methyl 3-[3-(4-methoxyphenyl)isoxazol-5-yl]propionate 
• 1204423-87-9 Methyl 3-[4-chloro-3-(4-methoxyphenyl)isoxazol-5-yl]propionate 
• 1204423-89-1 Methyl 3-[4-bromo-3-(4-methoxyphenyl)isoxazol-5-yl]propionate 
• 1204423-90-4 Ethyl 4-{3-[4-bromo-3-(4-methoxyphenyl)isoxazol-5-yl]propanoylamino}-1-ethylpyrrole-3-carboxylate 
• 1204423-91-5 Ethyl 4-{3-[4-ethyl-3-(4-methoxyphenyl)isoxazol-5-yl]propanoylamino}-1-ethylpyrrole-3-carboxylate 
• 1204423-82-4 C₁₈H₁₉BrFNO₆ 
• 1204423-83-5 C₂₇H₂₅BrFN₃O₅ 
• 1204423-84-6 C₂₉H₂₈FN₃O₅ 
• 1204423-92-6 C₂₄H₂₇N₃O₅ 
• 1204423-93-7 ethyl 4-{3-[4-ethyl-3-(4-methoxyphenyl)isoxazol-5-yl]propanoylamino}-1-ethylpyrrole-3-carboxylate 
• 338982-43-7 1-(3-(4-methoxyphenyl)isoxazol-5-yl)methaneamine 

Relevant academic research and scientific papers

A metal-free approach for in situ regioselective synthesis of isoxazoles via 1,3 dipolar cycloaddition reaction of nitrile oxide with propargyl bromide

Herein, we report a multi-component reaction (MCRs) to synthesise a range of 3-phenyl-5-(bromomethyl)isoxazoles analogues using DMF/water mixture as solvent, providing desired products in good to excellent yields. The reaction efficiently involves the 1,3-dipolar cycloaddition reaction between propargyl bromide and in situ-generated α-chloro aldoximes. The protocol proceeded well under mild metal-free conditions and showed a tolerance for a wide range of substituents. Graphical abstract: [Figure not available: see fulltext.]

CBP/CATENIN SIGNALING PATHWAY INHIBITORS AND USES THEREOF

Provided are compounds of formula (Ia), (Ib) and (IIa), and pharmaceutically acceptable salts thereof. Additionally provided are compositions and pharmaceutical compositions comprising the compounds, therapeutic methods using same for modulating (e.g., inhibiting) CREB binding protein (CBP)/β-catenin mediated signaling in treating a condition, disease or disorder (e.g., fibrosis, cancer, neurological conditions, metabolic disorders (e.g., diabetes, etc.), and skin conditions (dermatitis, psoriasis, scarring, alopecia, etc.) mediated by aberrant CBP/β -catenin signaling, and cosmetic methods for treating skin conditions (e.g., aging, etc.). Additionally provided are methods for enhancing vaccine efficacy using the compounds and compositions. Further provided are methods for efficiently synthesizing a clinical grade drug, comprising use, in a penultimate, or last reaction step under GMP conditions, of an intermediate 2-propynyl-compound to form a clinical grade isoxazole derivative (e.g., via 3+2 cycloaddition).

Facile synthesis and docking studies of 7-hydroxyflavanone isoxazoles and acrylates as potential anti-microbial agents

The present study is aimed to synthesize the novel 7-hydroxyflavanone derived compounds and to assess their biological activity. Two series of compounds such as 2-phenyl-7-((3-phenylisoxazol-5-yl)methoxy)chroman-4-ones (6a–h) and 4-oxo-2-phenylchroman-7-yl acrylates (8a–k) were synthesized from 7-hydroxyflavanone. All the compounds were subjected to anti-microbial activity and molecular docking studies. The results showed that the compounds 6e, 6g–h, 8h–i and 8k were exhibited most potent anti-microbial activity when compared with the standard drugs. Further, the docking studies revealed that the compounds 6a and 8h have the highest binding affinity score of sterol 14-α demethylase and DNA gyrase B respectively. This is the first report assigning unique synthesis of 7-hydroxyflavanone derivatives and their anti-microbial activity proved with in silico studies. Furthermore, the present study is useful for constructive research to synthesize novel compounds along with their biological activity. [Figure not available: see fulltext.].

Synthesis and in vitro biological evaluation of novel coumarin derivatives containing isoxazole moieties on melanin synthesis in B16 cells and inhibition on bacteria

A novel series of coumarin derivatives 6a–o, bearing isoxazole moieties were designed and synthesized. After that, they were evaluated for melanin synthesis in murine B16 cells and inhibitory effect on the growth of CA (Candida albicans), EC (Escherichia coli), SA (Staphylococcus aureus). It was found that eleven compounds (6b–f, 6j–o) showed a better activity on melanin synthesis than positive control (8-MOP). Among them, compounds 6d (242%) and 6f (390%), with nearly 1.6 and 2.6-fold potency compared with 8-MOP (149%) respectively, were recognized as the most promising candidate hits for further pharmacological study of anti-vitiligo. Seven halogen substituted compounds exhibited moderate antimicrobial activity against CA. It is interesting that 6e–f and 6l–m, which had two halogens on the benzene showed a comparable activity with Amphotericin B against CA. The evaluation of melanin synthesis in B16 cells and inhibitory effect on bacteria of above structurally diverse derivatives had also led to an outline of structure-activity relationship.

Synthesis of trifluoromethylated isoxazoles and their elaboration through inter- and intra-molecular C-H arylation

We report conditions for the preparation of a range of trifluoromethylated isoxazole building blocks through the cycloaddition reaction of trifluoromethyl nitrile oxide. It was found that controlling the rate (and therefore concentration) of the formation of the trifluoromethyl nitrile oxide was Critical for the preferential formation of the desired isoxazole products versus the furoxan dimer. Different conditions were optimised for both aryl- and alkyl-substituted alkynes. In addition, the reactivity at the isoxazole 4-position has been briefly explored for these building blocks. Conditions for intermolecular C-H arylation, lithiation and electrophile quench, and alkoxylation were all identified with brief substrate scoping that signifies useful tolerance to a range of functionalities. Finally, complementary processes for structural diversification through either intramolecular cyclisation or intermolecular cross-coupling were developed.

Synthesis and bioactivity of novel isoxazole chalcone derivatives on tyrosinase and melanin synthesis in murine B16 cells for the treatment of vitiligo

A new series of chalcone derivatives 1–18, bearing isoxazole moieties were designed and synthesized, and biologically evaluated for their activity on mushroom tyrosinase and melanin synthesis in murine B16 cells. The result indicated that most of prepared compounds 1–18 showed potent activating effect on tyrosinase, especially for 1–2, 4, 6–7, 9 and 15. Among them, compounds 2, 4 and 9 demonstrated the best activity with EC50?=?1.3, 2.5 and 3.0?μmol·L?1respectively, much better than the positive control 8-methoxypsoralan (8-MOP, EC50?=?14.8?μmol·L?1); In B16 cells, all the tested compounds exhibited a stronger activity on melanogenesis than 8-MOP (with the value of 115%). It was interesting that derivatives substituted with halogen (1, 2, 4, 5, 7, 9) were generally more potent. Compounds 2 (463%) and 18 (438%) with 3 and 4-fold potency compared with 8-MOP respectively, were recognized as the most promising candidate hits for further pharmacological study of anti-vitiligo.

Synthesis of new secretory phospholipase A2-inhibitory indole containing isoxazole derivatives as anti-inflammatory and anticancer agents

Secretory phospholipase A2 (sPLA2) is an important enzyme that plays a key role in various inflammatory diseases including cancer and its inhibitors have been developed as preventive or therapeutic agents. In the present study, a series of new indole containing isoxazole derivatives (10a–10o) is synthesized and evaluated for their sPLA2 inhibitory activities. All compounds (10a–10o) showed significant sPLA2 inhibition activities both in vitro and in vivo studies which is substantiated in in silico studies. Among all the tested compounds, 10o showed potent sPLA2 inhibition activity, that is comparable or more to ursolic acid (positive control). Further studies demonstrated that 10o showed in vitro antiproliferative activity when tested against MCF-7 breast and DU145 prostate cancer cells. Furthermore, compounds 10a–10o obeyed lipinsky's rule of 5 and suggesting druggable properties. The in vitro, in vivo and in silico results are encouraging and warrant pre-clinical studies to develop sPLA2-inhibitory compound 10o as novel therapeutic agent for various inflammatory disorders and several malignancies.

NITROGEN-CONTAINING AROMATIC HETEROCYCLYL COMPOUND

The present invention provides a compound having excellent regulating action on blood lipid level. The present invention provides a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof, etc., wherein A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH or the like; each R2 represents an alkyl or the like; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl, or the like; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl, or the like; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.

Safe and scaleable oxidation of benzaldoximes to benzohydroximinoyl chlorides

Benzohydroximinoyl chlorides are useful precursors to nitrile oxides used in the preparation of various heterocycles via 1,3-dipolar cycloadditions. These intermediates are typically accessed by oxidation of aldoximes using N-chlorosuccinimide. This simpl

Design, synthesis, and herbicidal activities of novel 2-cyanoacrylates containing isoxazole moieties

A series of novel 2-cyanoacrylates containing an isoxazole moiety were designed and synthesized. Their structures were characterized by 1H NMR and elemental analysis (or high-resolution mass spectrometry). Their herbicidal activities against four species were evaluated, and the results indicated that some of the title compounds showed excellent herbicidal activities against rape and amaranth pigweed in postemergence treatment even at a dose of 75 g/ha.