Table 1.
Varying amount of starting material to produce intermediate 4.
| Entry | Amount of 3 (mg) | % Conversion to 4 |
|---|---|---|
| 1 | 0.5 | 8 |
| 2 | 1.0 | 12 |
| 3 | 2.0 | 23 |
| 4 | 4.0 | 18 |
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