فهرس المقالات Dialkyl actylenedicarboxylates حرية الوصول المقاله صفحة الملخص نص كامل 1 - Promoted Preparation of Aminophosphonate and Functionalized Coumarins Derivatives as Key Constituent of Many Pharmaceutical Compounds Helia Mohammadi Bita Mohtat Mehran Kordtabar