| Substituent | Yield of substituted AQ, % | AQ content in product, % |
| R1=R2=R3=R5=R6=H | 69.7 | 97 |
| R1=R3=R5=R6=H R2=СH3 | 50 | 98 |
| R2=R3=R5=R6=H R1=СH3 | 84 | 99 |
| R1=R5=R6=H R2=R3=CH3 | 78 | 98 |
| R1=R3=R5=R6=H R2=Сl | 30 | 95 |
| R2=R3=R5=R6=СH3 R1=H | 70 | 94 |