نتایج جستجو برای: 1 methyl 1h 1

تعداد نتایج: 2832946  

Journal: :International journal of pharmaceutical research and allied sciences 2022

The chemistry of α-(arylhydrazono)-β-ketoaldehydes has recently received considerable attention and they are frequently employed as synthons in organic synthesis their structural features part biologically active compounds. Thus, the present studies research describe novel series 3,3'-(5-methyl-1-phenyl-1H-pyrazole-3,4-diyl)bis(2-arylhydrazono-3-oxo-propanal) 3a-i via coupling re...

Journal: :European journal of advanced chemistry research 2021

The biheterocyclic derivative of the phosphonic glycine analogue is prepared selectively by reaction between α-azidoamino diethyl methylphosphonate and 1-(prop-2-yn-1-yl)-1H-benzo[d]imidazole. dipolar -1,3 cycloaddition using Click Chemistry was carried out in a solvent water/ethanol mixture ratio 1:1. Copper sulphate pentahydrate sodium ascorbate are used catalytic amounts. compound [diethyl [...

2013
Sammer Yousuf Khalid M. Khan Frazana Naz Shahanaz Perveen Ghulam A. Miana

In the mol-ecule of the title compound, C7H9N3O3, the nitro and carbonyl groups are tilted with respect to the imidazole ring by 9.16 (6) and 65.47 (7)°, respectively. Neighbouring chains are linked via C-H⋯N and C-H⋯O hydrogen bonds forming two-dimensional slab-like networks lying parallel to (01-1).

Journal: :Journal of pharmaceutical and biomedical analysis 2007
Ganta Madhusudhan Reddy B Vijaya Bhaskar P Pratap Reddy S Ashok P Sudhakar J Moses Babu K Vyas K Mukkanti

Six impurities in pantoprazole sodium bulk drug substance were detected by a simple high performance liquid chromatographic method (HPLC) whose area percentage ranged from approximately 0.05 to 0.34%. Liquid chromatography-mass spectrometry (LC-MS) was performed to identify the molecular weight of the impurities. A thorough study was undertaken to characterize these impurities. These impurities...

2015
C H Lakshmi

New novel derivatives of N-((5-((6-oxido-6-(4 substituted phenoxy)-4,8-dihydro-1H-[1,3,2] dioxaphosphepino [5,6-c]pyrazol-1-yl) methyl)-1,3,4-thiadiazol-2-yl)carbamoyl) substituted benzene sulfo namides (7a-o as depicted in scheme) were Synthesized by condensation reaction of 4substituted Phenyl phosphorodichloridates (6a-c) and N-((5-((4,5-bis(hydroxymethyl)-1H-pyrazol-1-yi)methyl)1,3,4-thiadi...

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

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