Synthesis, Cytotoxic Evaluation, and Structure-Activity Relationship of Substituted Quinazolinones as Cyclin-Dependent Kinase 9 Inhibitors oleh Hamad M. Alkahtani, Amer Alhaj Zen, Ahmad J. Obaidullah, Mohammed M. Alanazi, Abdulrahman A. Almehizia, Siddique Akber Ansari, Fadilah Sfouq Aleanizy, Fulwah Yahya Alqahtani, Rana M. Aldossari, Raghad Abdullah Algamdi, Lamees S. Al-Rasheed, Sami G. Abdel-Hamided, Alaa A.-M. Abdel-Aziz, Adel S. El-Azab