Compound | R1 | R2 | R3 | R4 |
1 | H | H | H | H |
2 | H | OCH3 | OCH3 | OCH3 |
3 | H | H | N(CH3)2 | H |
4 | H | H | Cl | H |
5 | H | OCH3 | OCH3 | H |
6 | H | H | OCH3 | H |
7 | H | H | F | H |
8 | Br | H | CH2CH(CH3)2 | H |
9 | Br | H | OCH3 | H |
10 | H | H | CH2CH(CH3)2 | H |