552845-88-2Relevant academic research and scientific papers
Synthetic route of compound and application thereof in field of preparation of anti-diabetic drugs
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Paragraph 0039; 0059-0064, (2020/04/17)
The invention belongs to the technical field of drug synthesis, and particularly relates to a synthetic route of a compound and application of the compound in the field of preparation of anti-diabeticdrugs. The invention provides a synthetic route of SN158, and also provides the application of the synthetic route in the field of preparation of anti-diabetic drugs. The synthetic route of the invention comprises the following steps: brominating a raw material, namely 2,4-dihydroxybenzaldehyde; protecting para-hydroxyl groups by using methoxymethyl groups; methylating ortho-hydroxyl groups by using dimethyl sulfate or methyl iodide; and carrying out a Claisen-Schmidt condensation reaction by using a hydrochloric acid ethanol or boron trifluoride diethyl ether solution, with HATU or EDCI andHOBt as coupling agents for an amidation reaction. According to the invention, the yield of the prepared SN158 can reach 60% or above; meanwhile, column chromatographic purification is not needed in the preparation process, and the finally produced compound with a purity of 99% or above can be obtained only through recrystallization; and the method is suitable for large-scale/industrial productionand overcomes the technical defects that SN158 is low in synthesis yield and complex in purification in the prior art.
Synthesis method for compound and application thereof in field of medicines used for improving insulin resistance
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Paragraph 0035; 0055-0060; 0104-0106, (2020/04/17)
The invention belongs to the technical field of drug synthesis, and particularly relates to a synthesis method for a compound and application thereof in field of medicines used for improving insulin resistance. The invention provides the synthesis method of SN159. The synthesis method comprises the following steps: brominating a raw material, namely 2,4-dihydroxy benzaldehyde, protecting para-hydroxyl groups by using methoxymethyl groups, performing methylating by using dimethyl sulfate or methyl iodide, and carrying out a Claisen-Schmidt condensation reaction under an alkaline or acidic condition, thereby enhancing the yield of the finally produced compound from 18.9% in the prior art to 68% or above. According to the invention, column chromatographic purification is not needed in the preparation process, and the finally produced compound with a purity of 99% or above can be obtained only through recrystallization; and the method is suitable for large-scale/industrial production. According to the synthesis method of the compound and the application of the compound in the field of preparation of medicines used for improving insulin resistance, the technical defects that SN159 is low in synthesis yield and complex in purification in the prior art are overcome.
Design, synthesis and docking study of 5-(substituted benzylidene) thiazolidine-2,4-dione derivatives as inhibitors of protein tyrosine phosphatase 1B
Wang, Zengtao,Liu, Zhiguo,Lee, Woojung,Kim, Su-Nam,Yoon, Goo,Cheon, Seung Hoon
supporting information, p. 3337 - 3340 (2014/07/22)
A series of novel 5-(substituted benzylidene)thiazolidine-2,4-dione derivatives was designed, and synthesized based on our previous studies. Also their activities were evaluated as competitive inhibitors of protein tyrosine phosphatase 1B (PTP1B). Compounds 6d-6g, 7b, 7c, 7e, 7j, 7k, 7m, 14b and 14e-14f showed potent inhibitory effects against PTP1B, and compound 7e, the most potent among the series, had an IC50 of 4.6 μM. Also a Surflex-Dock docking model of 7e was studied. Compound 7e showed a negative binding energy of -7.35 kcal/mol and a high affinity to PTP1B residues (Gly220, Ala217, Arg221, Asp181, Ser216, Cys215, Phe182, Gln262 and Ile219) in the active sites, indicating that it may stabilize the open form and generate tighter binding to the catalytic sites of PTP1B.
Carboxylated, heteroaryl-substituted chalcones as inhibitors of vascular cell adhesion molecule-1 expression for use in chronic inflammatory diseases
Meng, Charles Q.,Ni, Liming,Worsencroft, Kimberly J.,Ye, Zhihong,Weingarten, M. David,Simpson, Jacob E.,Skudlarek, Jason W.,Marino, Elaine M.,Suen, Ki-Ling,Kunsch, Charles,Souder, Amy,Howard, Randy B.,Sundell, Cynthia L.,Wasserman, Martin A.,Sikorski, James A.
, p. 1304 - 1315 (2008/02/02)
Starting from a simple chalcone template, structure-activity relationship (SAR) studies led to a series of carboxylated, heteroaryl-substituted chalcone derivatives as novel, potent inhibitors of vascular cell adhesion molecule-1 (VCAM-1) expression. Corr
PROCESS OF MAKING CHALCOME DERIVATIVES
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Page 60, (2010/02/07)
This invention is a novel methods of manufacturing chalcones that includes reacting a carbon-linked heteroaryl or heterocyclic substituted benzaldehyde with an acetophenone in a solvent or mixture of solvents in the presence of LiOMe. Also provided are new chalcones for the treatment of medical conditions.
