Syntheses of 6-Acetamido-6-deoxy-lactose Derivatives

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Asymmetric syntheses of 1-deoxy-6,8a-di-epi-castanospermine and 1-deoxy-6-epi-castanospermine.

Asymmetric syntheses of both 1-deoxy-6,8a-di-epi-castanospermine and 1-deoxy-6-epi-castanospermine, polyhydroxylated indolizidine alkaloids that act as selective glycosidase inhibitors, have been accomplished in seven steps. The key feature of our unique syntheses includes the stereoselective introduction of the C-3 and C-4 hydroxyl groups utilizing the aza-Claisen rearrangement-induced ring ex...

متن کامل

Preparation of 6-azafulleroid-6-deoxy-2,3-di-O-myristoylcellulose.

6-Azafulleroid-6-deoxy-2,3-di-O-myristoylcellulose (3) was synthesized from 6-azido-6-deoxycellulose (1) by two reaction steps. The myristoylation of compound 1 with myristoyl chloride/pyridine proceeded smoothly to give 6-azido-6-deoxy-2,3-di-O-myristoylcellulose (2) in 97.0% yield. The reaction of compound 2 with fullerene (C(60)) was carried out by microwave heating to afford compound 3 in h...

متن کامل

Cascade Reaction of 6-Deoxy-6-iodohexopyranosides Promoted by Samarium Diiodide: A New Ring Contraction of Carbohydrate Derivatives.

Sequential transformations1 allow the assembly of complex molecules in a simple manner, with a minimum of purification steps, and are accordingly ideal components of elegant and efficient synthetic strategies. In recent years, samarium diiodide2 has evolved as a unique single electron reducing agent that is especially well suited to promote sequential processes that combine radical and anionic ...

متن کامل

Mechanism of inactivation of S-adenosylhomocysteine hydrolase by (E)-5',6'-didehydro-6'-deoxy-6'-halohomoadenosines.

S-Adenosylhomocysteine (AdoHcy) hydrolase is irreversibly inactivated by (E)-5',6'-didehydro-6'-deoxy-6'-halohomoadenosines (EDDHHAs, halogen = I, Br, and Cl). The inactivation is concomitant with the reduction of the enzyme-bound NAD+ (E.NAD+) to NADH, the release of halide ion, and the formation of adenine (Ade) from the EDDHHAs. The mechanism of this inactivation involves two catalytic pathw...

متن کامل

Synthesis and conformational analysis of 6-C-methyl-substituted 2-acetamido-2-deoxy-beta-D-glucopyranosyl mono- and disaccharides.

Several 6-C-substituted 2-acetamido-2-deoxy-beta-D-glucopyranosides (beta-D-GlcNAc monosaccharides 1a-3a and 1,4-linked disaccharides 1b-3b) were studied by solution NMR spectroscopy. Conformational analysis of the (6S)- and (6R)-C-methyl-substituted beta-d-GlcNAc monosaccharides indicates that the stereodefined methyl groups impose predictable conformational biases on the exocyclic C-5-C-6 bon...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Chemical and Pharmaceutical Bulletin

سال: 1973

ISSN: 0009-2363,1347-5223

DOI: 10.1248/cpb.21.546