Direct introduction of CH2OH by intermolecular trapping of CO
摘要:
Alkyl iodides are converted to the corresponding hydroxymethyl compounds in good yield by treatment with catalytic triphenylgermane-NaBH3CN-AIBN in benzene-THF under an atmosphere of CO at high pressure. This methodology is used for the synthesis of an analogue of the B ring of the calicheamicin oligosaccharide in which the hydroxylamine at C4 is replaced by a hydroxymethyl group.
[EN] NOVEL OLIGOSACCHARIDE GLYCOSIDES HAVING MAMMALIAN IMMUNOSUPPRESSIVE AND TOLEROGENIC PROPERTIES<br/>[FR] NOUVEAUX GLYCOSIDES OLIGOSACCHARIDIQUES AYANT DES PROPRIETES IMMUNOSUPPRESSIVES ET TOLEROGENES CHEZ LES MAMMIFERES
申请人:GLYCOMED, INC.
公开号:WO1997018222A2
公开(公告)日:1997-05-22
(EN) Disclosed are novel oligosaccharide glycosides having mammalian immunosuppressive and tolerogenic properties, pharmaceutical compositions containing such oligosaccharide glycosides and methods of using such oligosaccharide glycosides to modulate cell-mediated immune responses in a mammal.(FR) L'invention concerne de nouveaux glycosides oligosaccharidiques possédant des propriétés immunosuppressives et tolérogènes chez les mammifères, des compositions pharmaceutiques les contenant et des procédés d'utilisation de ces glycosides pour moduler les réponses immunes induites par les cellules chez un mammifère.