10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds-synthesis of compounds labelled with long-lived isotopes Session 1: Monday, June 15, 2009
10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds-synthesis of compounds labelled with long-lived isotopes Session 1: Monday, June 15, 2009
Synthesis and antihypertensive activity of diaminomethylenehydrazonium iodides
作者:E. G. Belozertseva、B. A. Chakchir、O. V. Solod、K. N. Zelenin
DOI:10.1007/bf02464116
日期:1997.6
studied the products of condensation of 2-aminoguanidinium iodide (I) with monocarbonyl (anisaldehyde, acetone) and dicarbonyl (acetylacetone, ormethyland ct,cz-dimethylacetylacetone, benzoylacetone, benzoylacetaldehyde) compounds. Derivatives of monocarbonyl compounds OI, HI) and a,ct-dimethylacetylacetone (VI), benzoylacetaldehyde (VIII), and acetoacetic ester (IX) are hydrazones (A); the products of condensation
Attempts to synthesize impurities of Gastro prokinetic drug tegaserod maleate, Three unknown impurities in tegaserod maleate bulk drug at level below 0.1% (ranging from 0.05 to 0.1 %) were detected by simple reverse phase high performance liquid chromatography (HPLC). These impurities were preliminarily identified with LCMS and by knowing the mass of the impurities, different experiments were conducted