Rapid Assembly of the Polyhydroxylated β-Amino Acid Constituents of Microsclerodermins C, D, and E
摘要:
A very short and efficient synthesis of protected derivatives of APTO and AETD, the complex polyhydroxylated beta-amino acid residues present in microsclerodermins C, D, and E, is described. The targets are obtained in only five steps, in 23% and 16% overall yields, respectively. The key transformation involves the completely diastereoselective two-carbon homologation of appropriately selected intermediate chiral sulfinimines.
Rapid Assembly of the Polyhydroxylated β-Amino Acid Constituents of Microsclerodermins C, D, and E
摘要:
A very short and efficient synthesis of protected derivatives of APTO and AETD, the complex polyhydroxylated beta-amino acid residues present in microsclerodermins C, D, and E, is described. The targets are obtained in only five steps, in 23% and 16% overall yields, respectively. The key transformation involves the completely diastereoselective two-carbon homologation of appropriately selected intermediate chiral sulfinimines.
Rapid Assembly of the Polyhydroxylated β-Amino Acid Constituents of Microsclerodermins C, D, and E
作者:Thomas Hjelmgaard、Sophie Faure、Pascale Lemoine、Bernard Viossat、David J. Aitken
DOI:10.1021/ol702962z
日期:2008.3.1
A very short and efficient synthesis of protected derivatives of APTO and AETD, the complex polyhydroxylated beta-amino acid residues present in microsclerodermins C, D, and E, is described. The targets are obtained in only five steps, in 23% and 16% overall yields, respectively. The key transformation involves the completely diastereoselective two-carbon homologation of appropriately selected intermediate chiral sulfinimines.