Design and Synthesis of Novel Derivatives of 4-(6-(4-Substituted Phenyl)-7H-[1,2,4] Triazolo[3,4-b][1,3,4]Thiadiazin-3- yl) Phenol as a Potent Inhibitor of Tubulin with Antitumor Activity - Kubba, Ammar A. Razzak Mahmood; Department of Pharmaceutical Chemistry, College of Pharmacy-University of Baghdad, Bab-Al-Mouadam-10001, Baghdad (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2020)