CAS: 572-09-8; (2R,3R,4S,5R,6R)-2-(Acetoxymethyl)-6-Bromotetrahydro-2H-Pyran-3,4,5-Triyl Triacetate

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上下游产品

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1',2',3',6',2,3,4,6-octa-O-Acetyl-β-D-Lactose置于乙酰溴,三氟化硼乙醚,Zinc Dibromide体系中,用 二氯甲烷 作为反应溶剂,化学反应生成 2,3,4,6-四乙酰氧基-Alpha-D-吡喃葡萄糖溴化物
参考文献:对甲氧基苯基糖苷转化为相应的糖基氯化物和溴化物,并转化为硫代苯基糖苷.
标题:对甲氧基苯基糖苷转化为相应的糖基氯化物和溴化物,并转化为硫代苯基糖苷.
摘要:使用硼从相应的1-O-乙酰基糖中制备对甲氧基苯基(pmp)β-D-吡喃葡萄糖苷(glc,Gal,Glcnphth,Galnphth,Glcntr°C,Gal Beta 4Glc,Gal Alpha 4Gal),使用硼制得三氟化醚醚为助催化剂.在各种路易斯酸的存在下用酰氯或溴化物处理pmp糖苷得到相应的糖酰氯和溴化物,产率为81-98%.用硫酚和三氟化硼醚化物处理酰基保护的pmp糖苷,可以80-100%的收率和高(> 20:1)β/ Alpha选择性获得相应的硫糖苷.针对一系列试剂研究了pmp糖苷的稳定性.
DOI:10.1016/s0008-6215(96)90118-4

专利信息

专利号:US-2004266699-A1
优先权日:2001-10-04
标 题 :Flavonoid compounds capable of modifying the dynamic and/or physical state of biological membranes and to stimulate the endogenous synthesis of stress proteins in eukaryotic cells, relative synthesis and their use
发明人：PORTA AMALIA
摘要:The invention relates to flavonoids compounds of formula (I) and (II) capable of modifying the dynamic and/or physical state of biological membranes and to stimulate the endogenous synthesis of stress proteins in eukaryotic cells. Such compounds are molecules of plant origin or synthetic. The invention also describes a method to identify, purify and chemically synthesize such flavonoid compounds and test their efficacy through their capacity to stimulate the transcription of stress genes and as a consequence, to interact with biological membranes with alteration of their relative physical state. Such compounds and corresponding pharmaceutically acceptable derivatives and/or salts have applications in the areas of pharmaceuticals, more specifically in cosmetics and dermatology, for all those afections related to an alteration of the expression of stress genes.

专利号:US-7435816-B2
优先权日:2003-04-30
标 题 :Synthesis of solanum glycosides
发明人：SHAHID MOHAMMED
权利人:SHAHID MOHAMMED
摘要:The present invention relates to the chemical synthesis of solanum glycosides, in particular to the synthesis of solasonine as well as to novel β-monosaccharide intermediate compounds, of Formula (2), where R 1 is a benzylidene, 4-nitrobenzylidene or 4-methoxybenzylidine group, and each R 2 independently is a benzoyl, acetyl or pivaloyl group:

专利号:US-4384998-A
优先权日:1981-03-30
标题:Synthesis of thienamycin from D-glucose
发明人：DURETTE PHILIPPE L
权利人:MERCK & CO INC
摘要:Disclosed is a chiral, total synthesis of thienamycin from D-glucose which proceeds via intermediates I, II and III to known aldehyde IV which is known to be useful in the total synthesis of thienamycin (V): ##STR1## wherein: R is lower alkyl having 1-6 carbon atoms or bi-valent alkyl having 2-6 carbon atoms which joins the two sulfur atoms; R 1 is lower alkyl or aralkyl, such as benzyl and the like; and R 2 is hydrogen or a removable protecting group, such as triorganosilyl wherein the organo groups are independently selected from lower alkyl, phenyl and phenylloweralkyl.

专利号:US-4448976-A
优先权日:1981-03-30
标题 :Chiral synthesis of thienamycin from D-gluocose
发明人：DURETTE PHILIPPE L
权利人:MERCK & CO INC
摘要:Disclosed is a chiral, total synthesis of thienamycin from D-glucose which proceeds via intermediates I, II and III to known aldehyde IV which is known to be useful in the total synthesis of thienamycin (V): ##STR1## wherein: R is lower alkyl having 1-6 carbon atoms or bi-valent alkyl having 2-6 carbon atoms which joins the two sulfur atoms; R 1 is lower alkyl or aralkyl, such as benzyl and the like; and R 2 is hydrogen or a removable protecting group, such as triorganosilyl wherein the organo groups are independently selected from lower alkyl, phenyl and phenylloweralkyl.

专利号:EP-1421100-B1
优先权日:2001-08-21
标 题 :Chemical synthesis of solamargine
发明人：SHAHID MOHAMMED
权利人:GLYCOMED SCIENCES LTD
摘要:The present invention relates to the chemical synthesis of solanum glycosides, in particular to the synthesis of solamargine as well as to novel beta-monosaccharide Intermediate compounds.

专利号:US-2003138880-A1
优先权日:2001-08-24
标 题:Solid-phase synthesis of oligosaccharides and glycopeptides using glycosynthases
发明人：WITHERS STEPHEN G; JENSEN KNUD J; PETERSEN LARS; TOLBORG JAKOB L
权利人:UNIV BRITISH COLUMBIA
摘要:The present invention provides materials and methods for the solid-phase synthesis of oligosaccharides and glycopeptides. Such materials and methods include mutant glycosidase enzymes, or “glycosynthases,â€? chemically-derivatized acceptor molecules, and specific solid support matrices.