فهرس المقالات Spiro lactone حرية الوصول المقاله صفحة الملخص نص كامل 1 - Tandem Synthesis and Optical Rotatory Dispersion Studies of a Novel Spiro Lactone (methyl 3-(benzo[d]thiazol-2-ylamino)-7,9-dimethyl-2,6,8,10-tetraoxo-1-oxa-7,9-diazaspiro[4.5]dec-3-ene-4-carboxylate) Karim Ghafouri Samira Arab-salmanabadi Sajjad Sedaghat
