Table 8.
Catalyst | catalyst loading (mol%) | Yield (%) | ee (%) |
---|---|---|---|
L-Pro65 | 20 | 68 | 76 |
L-Asp142 | 20 | 35 | 40 |
L-Glu142 | 20 | 36 | 18 |
L-Thr142 | 20 | 37 | 42 |
L-Pro-L-Ala-NPh, HOAc146 | 20 | 88 | 38 |
4-NHBoc-L-Pro-L-Pro144 | 15 | 83 | 73 |
L-Pro-L-Ser143 | 30 | 87 | 77 |
L-Pro-L-ThrOTBS147 | 20 | 91 | 82 |
L-Leu-L-His145 | 30 | 87 | 71 |
4-NHBoc-L-Pro-L-Pro-L-Pro-L-Pro144 | 5 | 62 | 75 |
L-Pro-D-Ala-D-Asp-NH2148 | 10 | 73 | 70 |
L-Pro-L-Pro-L-Asp-NH2148 | 1 | 99 | −80 |
References are given for each product as a superscript.