394-27-4Relevant articles and documents
Preparation method of dacomitinib intermediate
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Paragraph 0103-0107, (2021/04/28)
The invention provides a preparation method of a dacomitinib intermediate. The preparation method comprises steps shown in the specification. The invention provides the novel preparation method of the dacomitinib key intermediate, the intermediate is short in synthetic route, mild in reaction condition, short in reaction time and simple in separation and purification method, raw materials and reagents are conventional reagents, the cost is low, the yield of the prepared product is high, and the method is very beneficial to industrial production and popularization and has a good application prospect.
Design, synthesis and anticonvulsant evaluation of N-(benzo[d]thiazol-2- ylcarbamoyl)-2-methyl-4-oxoquinazoline-3(4H)-carbothioamide derivatives: A hybrid pharmacophore approach
Malik, Sachin,Bahare, Radhe Shyam,Khan, Suroor Ahmad
, p. 1 - 13 (2013/10/01)
Novel N-(benzo[d]thiazol-2-ylcarbamoyl)-2-methyl-4-oxoquinazoline-3(4H)- carbothioamide derivatives were synthesized and evaluation of their anticonvulsant effects was done using various models of experimental epilepsy. Initial anticonvulsant activities of the compounds were investigated using intraperitoneal (i.p.) maximal electroshock shock (MES), subcutaneous pentylenetetrazole (scPTZ) seizure models in mice. The quantitative assessment after oral administration in rats showed that the most active was 2-methyl-4-oxo-N-(6-(trifluoromethoxy)benzo[d]thiazol-2-ylcarbamoyl) quinazoline-3(4H)-carbothioamide (SA 24) with ED50 values of 82.5 μmol/kg (MES) and 510.5 μmol/kg (scPTZ). This molecule was more potent than phenytoin and ethosuximide which were used as reference antiepileptic drugs. To explain the possible mechanism for anticonvulsant action, some of the selected active compounds were subjected to GABA (γ-amino butyric acid) assay and AMPA ((S)-2-amino-3-(3-hydroxyl-5-methyl-4-isoxazolyl) propionic acid) induced seizure test.
Quinazolin-4(3H)-one derivatives as anticoccidial agents
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, (2008/06/13)
Variously substituted trans-3-[3-(3-hydroxypiperid-2-yl)-2-oxopropyl]quinazolin-4-(3H)-ones, a method of controlling or preventing coccidiosis in poultry therewith, intermediates therefor, and a process for the preparation of certain intermediates therefor.