Table 2.

Column temperature effect on selectivity (α) and resolution (R_s) for the two pair of enantiomers of compound I.

Temperature (ºC)	Atropisomers 1 and 2		Atropisomers 3 and 4
	α	Rs	α	Rs
6	1.33	1.89	1.48	2.60
10	1.31	1.87	1.46	2.60
15	1.29	1.80	1.43	2.59
20	1.26	1.70	1.41	2.57
25	1.24	1.60	1.39	2.49
30	1.22	1.43	1.37	2.36