Table 1.

Compounds 1–24.

Product	R1	R2	R3	R4	R5	R6	R7	R8
1	H	H	H	H	H	OH	H	H
2	H	H	H	H	OH	H	H	H
3	H	H	H	H	OH	OH	H	H
4	H	H	OH	H	H	OH	H	H
5	H	H	OH	H	H	H	H	H
6	H	H	OH	H	OH	H	H	H
7	H	H	OH	H	H	OH	H	OH
8	H	H	OH	H	OH	OH	H	H
9	H	H	OH	H	H	OCH3	H	H
10	H	H	OH	H	H	H	OCH3	H
11	H	H	OH	H	H	H	OH	H
12	H	H	OCH3	OCH3	OH	OH	H	H
13	H	H	OCH3	H	H	OH	H	H
14	H	H	OCH3	H	OH	H	H	H
15	H	H	OCH3	H	OH	OH	H	H
16	H	H	CH3	H	H	OH	H	H
17	H	H	CH3	H	OH	OH	H	H
18	H	H	F	H	H	OH	H	H
19	H	H	F	H	OH	OH	H	H
20	H	H	Br	H	H	H	H	H
21	H	H	Br	H	OH	OH	H	H
22	H	H	OH	OH	OH	OH	H	H
23	CH3	H	H	CH3	OH	OH	H	H
24	H	OH	OH	H	H	OH	H	H