Merck Patent Gesellschaft MIT Beschrankter Haftung

Willy Kinzy

Michael Wolf

Manfred Baumgarth

Hans-Eckart Radunz

Richard R Schmidt

Jurgen Hemberger

Gerd-Albrecht Luckenbach

Karl-Heinz Jung

Barbara Spahngehl

Diterpenes of the formula I ##STR1## in which R.sup.1 is --CH.sub.2 --C(CH.sub.3).dbd.CH--R.sup.3 or --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --R.sup.3,

Diterpenes having immunomodulatory action

The invention relates to a process for the stereoselective preparation of .beta.-L-fucopyranosyl phosphates via the trichloroacetimidates of protected L-fucose and the synthesis and purification of very pure GDP-fucose from the .beta.-L-fucopyranosyl phosphates.

Process for the stereoselective preparation of .beta.-fucopyranosyl

The invention relates to a new process for the stereoselective preparation of Gal-.alpha.(1-3)/Gal-.beta.(1-4)/GlcNac trisaccharides of the formula ##STR1## and of .beta.(1-3)-linked oligolactosamines of the formula ##STR2## via partially alkylated glycals of the formula ##STR3## and other new intermediate products, wherein, depending on the formula, R is H, R'CH.sub.2 --, or allyl,

Process for the preparation of sugar epitopes

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Inzlingen, Germany

Willy Kinzy