No. | R1 | R2 | R3 | No. | R1 | R2 | R3 | X | Yield (%) |
---|---|---|---|---|---|---|---|---|---|
1 | H | H | H | 5 | H | H | H | CH | 53 |
2 | H | H | Et | 6 | H | H | Et | CH | 55 |
3 | Me | H | H | 7 | Me | H | H | CH | 49 |
4 | Me | Me | H | 8 | Me | Me | H | CH | 58 |
9 | H | H | H | N | 42 | ||||
10 | H | H | Et | N | 47 | ||||
11 | Me | H | H | N | 53 | ||||
12 | Me | Me | H | N | 83 |