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| ||||
|---|---|---|---|---|
| Entry | Z | R | Yield (%) | ee (%) |
| 1 | NTs | Ph | 68 | 99 |
| 2 | " | c-Hex | 79 | 99 |
| 3 | " | t-Bu | 20 | >99 |
| 4 | C(CO2Bn)2 | c-Hex | 42 | 99 |
