M. Takahashi et al., SYNTHETIC STUDY OF USTILOXIN ANALOGS - BENZYLIC OXIDATION OF 13-MEMBERED CYCLIC PEPTIDE BY LEAD-TETRAACETATE, Heterocycles, 47(1), 1998, pp. 163-166
The 13-membered cyclic peptides (5, 6), analogs of phomopsin-ustiloxin
class of antibiotics, have been synthesized. Benzylic hydroxyl group
was introduced in desired stereochemistry by lead tetraacetate oxidati
on followed by methanolysis.