Jo. Durand et Jp. Genet, SYNTHESIS OF MEBMT C9 AMINO-ACID PRESENT IN CYCLOSPORINE, AND ANALOGS, Bulletin de la Societe chimique de France, 131(6), 1994, pp. 612-619
The asymmetric syntheses of (4R)-4-((E)but-2-enyl)-4,N-dimethyl-L-thre
onine, MeBmt, are reviewed and discussed. This unusual amino acid is e
ssential for the biological activity of cyclosporine (CsA) which is us
ed clinically to suppress the rejection of transplanted human organs.