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Selenoester-mediated glycosylationa.
| Entry | Peptide + glycan ratio (P:G) | Product | Isolated yield |
|---|---|---|---|
 | |||
| 1 |
10b
+
1c (1:1.5) |
 |
65% |
| 2 |
11b
+
1c (1:1.5) |
 |
59% |
| 3 |
12b
+
1c (1:1.5) |
 |
62% |
Reaction conditions: 1c (3 μmol), 10b-12b (2 μmol), DIPEA (4 μmol) in 0.5 mL of DMSO, 4 Å MS, rt, 6 h.
