CAS: 604-68-2; (2R,3R,4S,5R,6R)-6-(Acetoxymethyl)Tetrahydro-2H-Pyran-2,3,4,5-Tetrayl Tetraacetate

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CAS号2280-44-6 D-glucopyranose | CAS号108-24-7 乙酸酐 | CAS号50-99-7 D(+)-无水葡萄糖 | CAS号604-69-3 β-D-葡萄糖五乙酸酯 | CAS号108-98-5 硫酚 | CAS号137-06-4 邻硫甲酚 | CAS号492-62-6 α-D-葡萄糖 | CAS号75-36-5 乙酰氯 | CAS号108-22-5 醋酸异丙烯酯 | CAS号14581-85-2 2'-NITROPHENYL ... | CAS号35023-96-2 2'-nitrophenyl ... | CAS号141998-21-2 N1-乙酰基三亚乙基四胺-d4 | CAS号14581-78-3 4-methylphenyl ... | CAS号32742-30-6 4-methylphenyl ... | CAS号3947-62-4 2,3,4,6-四-O-乙酰基... | CAS号13100-46-4 1,2,3,4-四-O-乙酰基... | CAS号4692-12-0 acetyl 3,4,6-tr... | CAS号55286-97-0 1,2,3,6-四-o-乙酰基...

2-(Trimethylsilyl)Ethyl β-D-Glucopyranoside置于palladium On Activated Charcoal 吡啶,氢氧化钾,草酰氯,4 A Molecular Sieve,三氟化硼乙醚,四乙基溴化铵,氢气,N,N-二甲基甲酰胺,三氟乙酸体系中,用 二氯甲烷,溶剂黄146,甲苯 作为反应溶剂,130.0 °C,101.33 Kpa 条件下,反应 79.0H,反应生成 α-D(+)-五乙酰葡萄糖
参考文献:2-(Trimethylsilyl)Ethyl Glycosides. 3. Synthesis,Anomeric Deblocking,And Transformation Into 1,2-Trans 1-O-Acyl Sugars
标题:2-(Trimethylsilyl)Ethyl Glycosides. 3. Synthesis,Anomeric Deblocking,And Transformation Into 1,2-Trans 1-O-Acyl Sugars
摘要:
DOI:10.1021/jo00259A006

专利信息

专利号:US-6350865-B1
优先权日:1999-02-19
标 题 :Process for the preparation of pentaacetyl-β-D-glucopyranose
发明人：TSUJI MASAHIRO; YAMAZAKI HIROYUKI
权利人:NISSHIN PHARMA INC
摘要:In a process for the preparation of pentaacetyl-β-D-glucopyranose by reacting D-glucose with acetic anhydride in the presence of sodium acetate catalyst, the improvement is provided wherein 5-10 mols of acetic anhydride are used per mol of D-glucose and the reaction is performed in an organic solvent. Pentaacetyl-β-D-glucopyranose is useful as intermediates for the synthesis of raw materials for industrial chemicals, medicines, cosmetics and the like.

专利号:US-4900814-A
优先权日:1985-12-16
标题:Synthesis of podophyllotoxin derivatives
发明人：STERLING JEFFREY; NUDELMAN ABRAHAM; HERZIG JAACOV; KEINAN EHUD; WEINER BEN Z
权利人:STERLING JEFFREY; NUDELMAN ABRAHAM; HERZIG JAACOV; KEINAN EHUD; WEINER BEN Z
摘要:There is provided a novel process for the production of the epipodophyllotoxin glycosides, Etoposide and Teniposide. There are further provided certain novel 4'-demethylepipodophyllotoxin derivatives of the following formula ##STR1## where W is hydrogen or 2,3-di-O-acetyl-4,6,O-ethylidene-D-glucopyran-1-yl. These intermediates are easily transformed into Etoposide and Teniposide and into further derivatives of this series.

专利号:US-6387238-B1
优先权日:1999-08-05
标题:Electrolytic synthesis of peracetic acid
发明人：MERK TOM L; MALCHESKY PAUL S; LIU CHUNG-CHIUN
权利人:STERIS INC
摘要:An electrolysis unit (10, 210, 310) has an anode (16, 216,316) and a gas diffusion cathode (18, 218, 318). Air is fed to the cathode (18, 218) to generate peroxide species, such as hydrogen peroxide, peroxide ions, or peroxide radicals by electrolysis of oxygenated water. A peracetic acid precursor, such as acetyl salicylic acid, reacts with the peroxide to form peracetic acid. An ion selective barrier (20, 220) optionally separates the unit into two chambers, an anodic chamber (12, 212) and a cathodic chamber (14, 214). By selecting either a proton permeable membrane or an anion exchange membrane for the barrier, the peracetic acid may be formed in either an alkaline electrolyte in the cathodic chamber or in an acid electrolyte in the anode chamber, respectively.

专利号:EP-1199931-B1
优先权日:1999-08-05
标 题 :Electrolytic synthesis of peracetic acid

专利号:EP-1199931-A1
优先权日:1999-08-05
标 题:Electrolytic synthesis of peracetic acid

专利号:EP-2739636-B1
优先权日:2011-08-02
标题 :Oligosaccharides and oligosaccharide-protein conjugates derived from clostridium difficile polysaccaride ps-i, methods of synthesis and uses thereof, in particular as vaccines and diagnostic tools