Macrocyclization studies and total synthesis of cyclomarin C, an anti-inflammatory marine cyclopeptide
摘要:
The studies on macrocyclization at possible sites toward the total synthesis of cyclomarin C are described. The results showed that both Trp and Phe derivatives involved in the target could not be the terminals of the final linear peptide precursors. Additionally, preparation of corresponding dipeptides with an N-methyl amide bond is not favorable in the synthesis of linear precursors. Site d was finally proved a proper site for the cyclopeptide formation, and the corresponding head-to-tail macrocyclization was achieved under mild conditions and gave repeatable and satisfactory yields. (c) 2005 Elsevier Ltd. All rights reserved.
Macrocyclization studies and total synthesis of cyclomarin C, an anti-inflammatory marine cyclopeptide
摘要:
The studies on macrocyclization at possible sites toward the total synthesis of cyclomarin C are described. The results showed that both Trp and Phe derivatives involved in the target could not be the terminals of the final linear peptide precursors. Additionally, preparation of corresponding dipeptides with an N-methyl amide bond is not favorable in the synthesis of linear precursors. Site d was finally proved a proper site for the cyclopeptide formation, and the corresponding head-to-tail macrocyclization was achieved under mild conditions and gave repeatable and satisfactory yields. (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis of the ‘southern’ tripeptide of Cyclomarins A and C having novel anti-tuberculocidal mode of action
作者:Kurapati Sathish、Gangireddy Pavan Kumar Reddy、Prathama S. Mainkar、Srivari Chandrasekhar
DOI:10.1016/j.tetasy.2011.08.026
日期:2011.7
The synthesis of the 'southern' tripeptide of Cyclomarins A and C has been described which includes two unusual amino acids. The unusual amino acids have been synthesized and coupled with L-alanine to obtain the tripeptide. (C) 2011 Elsevier Ltd. All rights reserved.