摘要:
Grubbs' second generation ruthenium catalyst was used to Couple the amino acid L-phenylalanine to a 17-membered lactam, using cross-metathesis with an E-alkene favored in the process. The best coupling conditions have the product in 48% yield. The reversibility of the process was also confirmed. Ring-closing metathesis was a key reaction used to form the macrocyclic lactam.