Table 1.

Chemical structures of the investigated compounds. (The compounds marked with an asterisk were previously examined by other teams. The scope of research has been described in the further part of the text).

	n	R		n	R
4a*	1	2-NO2	12a	1	2-NO2
4b*	1	3-NO2	12b	1	4-NO2
4c*	1	4-NO2	13a	2	2-NO2
5a*	2	2-NO2	13b	2	4-NO2
5b*	2	3-NO2	14a	1	4-N(CH3)2
5c*	2	4-NO2	14b	1	4-N(C2H5)2
6a*	1	4-N(CH3)2	15a	2	4-N(CH3)2
6b*	1	4-N(C2H5)2	15b	2	4-N(C2H5)2
7a*	2	4-N(CH3)2	16	1	4-Cl
7b*	2	4-N(C2H5)2	17	2	4-Cl
8a	1	2-OCH3
8b	1	3-OCH3
8c*	1	4-OCH3
9a*	2	2-OCH3
9b	2	3-OCH3
9c	2	4-OCH3
10a	1	2-Cl
10b*	1	3-Cl
10c*	1	4-Cl
11a*	2	2-Cl
11b*	2	3-Cl
11c*	2	4-Cl