NEW CANDIDATES FOR MACROCYCLIZATION PENTAPEPTIDE SYNTHESIS BASED ON Na-ISOPHTHALOYL SARCOSYL AMINO ACIDS. - Moustafa, Gaber O.; Ghabbour, Hazem A.; Almehizia, Abdulrahman A.; Al-Omar, Mohamed A.; Naglah, Ahmed M. (Bulletin of the Chemical Society of Ethiopia, 2026)