“…The available Chiralpak AD‐H (AD) commercial column was investigated in this work in order to help elucidate aspects of the chiral resolution mechanism for asymmetric 1,4‐dihydropyridine compounds. Thirty 1,4‐dihydropyridine compounds, 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , were synthesized and purified for this purpose in this current work by using the method pioneered by Ko and Yao (Fig. ).…”