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Intelligence Way from Eco-friendly Synthesis Strategy of New Heterocyclic Pyrazolic Carboxylic a-Amino Esters

Chemical Research in Chinese Universities 2020年第6期36卷 1183-1189页

作者： EI Houssine MABROUK Nadia ARROUSSE Adil KORCHI mohammed LACHGAR Ahmad OUBAIR Abdelrhani ELACHQAR Mohamed JABHA mohammed lachkar Fadoua El HAJJAJI Zakia RAIS Mustapha TALEB Laboratory of Materials Engineering for the Environment&Natural Resources Department of ChemistryFaculty of Sciences and TechnicsBP 509 BoutalamineErrachidiaMoulay Ismail University MeknesMorocco Laboratory of Engineering OrganometallicMolecular and Environment(LlMMOME)Faculty of SciencesUniversity Sidi Mohamed Ben AbdellahB.P.1796FezMorocco Faculty of Sciences and Technologies University Sidi Mohamed Ben AbdellahFezMorocco Department of Chemistry Faculty of Sciences Dhar El MahrazUniversity Sidi Mohamed Ben AbdellahB.P.1796FezMorocco Natural Resources and Environment Team(RN&E) Faculty of Sciences and TechnicsErrachidiaMoulay Ismail UniversityMorocco

The a-amino acid derivatives constitute a class of compounds of particular medicinal and synthetic attention and considerable interest has been devoted to their synthesis in recent *** the present work,we develop the computational study of the synthesis reaction of new pyrazolyl a-amino esters derivatives using the Gaussian 09based on the DET/B3LYP density functional theorv method,with the base 6-31G(d.p)to ensure the possibility of carrying out these reactions within the laboratory of ***,this research has encouraged us to establish an economical synthesis strategy of these products in overall vields of 73.5%to 87%to have access to new active biomolecule through the O-alkvlation reaction between methyl a-azidoglycinate N-benzoylated and primary pyrazole alcohols(3,5-dimethyl-1 H-pyrazol-1-yl)methanol,(1H-pyrazol-1-yl)methanol and(3-ethoxy-5-methyl-1H-pyrazol-1yl)methanoll under different operating *** structure of the prepared heterocyclic systems was characterized by conventional spectroscopic techniques,like H NMR.I3℃NMR,and *** results revealed that the experimental study is in good correlation with the computational one.

关键词： a-Pyrazolyl amino ester Methyl a-azido glycinate N-benzoylated O-Alkylation DFT/B3LYP/6-31G(d,p)

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Facial and Orbital Emphysema after a Violent Nose-Blowing

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International Journal of Otolaryngology and Head & Neck Surgery 2022年第3期11卷 107-111页

作者： Azeddine lachkar Amine Salek Drissia Benfadil Fahd Elayoubi mohammed Rachid Ghailan ENT and Head and Neck Surgery Department University Hospital Center Mohammed VI Faculty of Medicine and Pharmacy Mohammed First University Oujda Morocco

Subcutaneous orbital and facial emphysema is a rare condition that may occur after a direct or indirect sinus trauma. A case report of a 25-year-old female complaining of bilateral swelling of the eyelid, orbital area, and facial puffiness, secondary to a violent nose-blowing. Computed tomography (CT) confirmed the diagnosis of subcutaneous emphysema. The initial treatment plan was puncture-suction and prophylactic intravenous antibiotic therapy. The patient was advised to not blow her nose. There has been no improvement in the patient’s condition on the tenth day, so we performed a bilateral nasal packing by two Merocels (R), maintained for five days. After two weeks, the condition had completely resolved.

关键词： Orbital Emphysema Facial Emphysema Nose-Blowing

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