Structure-based design of potent pyrazolo[1,5-a]pyrimidine CDK4/6 inhibitors: biological evaluation and computational validation. - Binjubair FA; Elkotamy MS; Mattar AA; Almutairy BK; Al-Rashood ST; Eldesouki MM; Bouajila J; Abdel-Aziz HA; Fakhry MM (RSC medicinal chemistry, 2026)