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Methyl beta-C-lactoside (beta-D-Galp-C-(1-->4)-beta-Glcp-OMe) is stere
oselectively synthesized by radical coupling of phenyl Se-beta-D-galac
topyranoside 5 onto exo-methylene-sugar 4, which are temporarily conne
cted through a silaketal tether. (C) 1998 Elsevier Science Ltd. All ri
ghts reserved.