PLUMET, J.; ARBONA, O. A Stereodivergent Access to Naturally Occurring Aminocarbasugars from (Phenylsulfonyl)-7 -Oxa-bicyclo[2.2.1 ]heptane Derivatives. Total Synthesis of ( + )-Validamine and Its CI and C2 Stereoisomers. Ars Pharm 1995, 36, 445-454.