Compound | R | Yield (%) |
---|---|---|
VA-01 | CH3O– | 52.5 |
VA-02 | OH– | 98.1 |
VA-03 | CH3CH2NH– | 89.5 |
VA-04 |
| 65.2 |
VA-05 | CH3NH– | 87.0 |
VA-06 |
| 74.0 |
VA-07 |
| 68.9 |
VA-08 |
| 76.4 |
VA-09 |
| 86.7 |
VA-10 |
| 79.3 |
VA-11 |
| 68.3 |
VA-12 |
| 57.6 |
VA-13 |
| 65.7 |
VA-14 |
| 57.8 |
VA-15 |
| 68.9 |
VA-16 |
| 67.0 |
VA-17 |
| 65.2 |
VA-18 |
| 62.7 |
VA-19 |
| 75.1 |
VA-20 |
| 83.2 |