Four 3-amino-2,3,6-trideoxysugars were synthesized by a divergent routefrom a single enone 9a. The Migita-Stille coupling introduced a methyl group at the 3-position. Stereoselective reduction of enone and the Mitsunobu reaction provided both β- and α-hydroxy groups at the 4-position. Stereospecific radical cyclization of the C4 carbamoyl moiety furnished the desired 5a, 5b and 6a, 6b, respectively
Derivatives of Dihydroxypyrrolidine as Anti-Cancer Compounds
申请人:EPFL Ecole Polytechnique Fédérale de Lausanne
公开号:EP2067771A1
公开(公告)日:2009-06-10
The present invention relates to derivatives of dihydroxypyrrolidine useful in the treatment of cancer. The invention further relates to a process for making the compounds. The compounds are inhibitors of α mannosidase, and possibly, also inhibit nicotinamide phosphoribosyl transferase.
Acyclic stereoselection. 19. Total synthesis of (±)-ristosamine and (±)-megalosamine.
作者:Clayton H. Heathcock、Stephen H. Montgomery
DOI:10.1016/s0040-4039(00)86214-0
日期:1983.1
A trimeric l-ristosamine-ammonia condensation-product
作者:John H. Martin、George A. Ellestad、F.Maurice Lovell、George O. Morton、Ronald T. Hargreaves、Nancy A. Perkinson、Jesse L. Baker、Jesse Gamble、William J. McGahren