Table 1.

List of substitutions of the final target compounds (1–23).

No	R1	R2	X/Y
1	C2H5	C4H9	2,4-di Cl
2	C3H7	C3H7	2,4-di Cl
3	C2H4-O-CH3	C2H4-O-CH3	2,4-di Cl
4	C5H11	C5H11	2,4-di Cl
5	c-propylmethyl	C3H7	2,4-di Cl
6	C2H5-CH-C2H5	H	2,4-di Cl
7	C3H7-CH-C3H7	H	2,4-di Cl
8	C3H7	C3H7	2-Br-4-CH(CH3)2
9	c-propylmethyl	C3H7	2-Br-4-CH(CH3)2
10	C2H4-O-CH3	C2H4-O-CH3	2-Br-4-CH(CH3)2
11	C5H11	C5H11	2-Br-4-CH(CH3)2
12	C2H5-CH-C2H5	H	2-Br-4-CH(CH3)2
13	C3H7-CH-C3H7	H	2-Br-4-CH(CH3)2
14	C2H5	C4H9	2,4-di CH3
15	C3H7	C3H7	2,4-diCH3
16	C2H4-O-CH3	C2H4-O-CH3	2,4-di CH3
17	c-propylmethyl	C3H7	2,4-di CH3
18	C2H5-CH-C2H5	H	2,4-di CH3
19	C3H7-CH-C3H7	H	2,4-di CH3
20	C2H5	C4H9	2-CH3-4-OCH3
21	C3H7	C3H7	2-CH3-4-OCH3
22	c-propylmethyl	C3H7	2-CH3-4-OCH3
23	C2H5-CH-C2H5	H	2-CH3-4-OCH3