CAS: 1476-39-7; Pentane-1,5-Diamine Dihydrochloride

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专利信息

专利号:US-4841045-A
优先权日:1985-03-12
标 题 :Synthesis of vinblastine and vincristine type compounds
发明人：KUEHNE MARTIN
权利人:UNIV VERMONT
摘要:A new process for the stereospecific synthesis of alkaloids of the vinblastine and vincristine type including the synthesis of vinblastine and vincristine as well novel alkaloids which are active as anti-tumor agents.

专利号:US-4897477-A
优先权日:1985-03-12
标题:Synthesis of vinblastine and vincristine type compounds
发明人：KUEHNE MARTIN
权利人:UNIV VERMONT
摘要:A new process for the stereospecific synthesis of alkaloids of the vinblastine and vincristine type including the synthesis of vinblastine and vincristine as well novel alkaloids which are active as anti-tumor agents.

专利号:US-5292977-A
优先权日:1992-02-05
标题:Palladium catalyzed alkylative cyclization useful in synthesis of vitamin D and analogues
发明人：TROST BARRY M; DUMAS JACQUES
权利人:UNIV LELAND STANFORD JUNIOR
摘要:An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R 1 where a substantially geometrically pure first precursor having the structure ##STR1## and a second precursor are provided, the second precursor being a 1,7 enyne. These precursors are reacted in the presence of a palladium catalyst to form compounds having the structure ##STR2## where R 2 hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group, and R 3 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group.

专利号:US-5446225-A
优先权日:1992-02-05
标题:Palladium catalyzed akylative cyclization useful in syntheses of Vitamin D and analogues
发明人：TROST BARRY M; DUMAS JACQUES
权利人:UNIV LELAND STANFORD JUNIOR
摘要:An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R 1 where a first precursor having the structure ##STR1## with X being a halide or a pseudo halide, and a second precursor are provided, the second precursor being a 1,7 enyne. These precursors are reacted in the presence of a palladium catalyst to form compounds having the structure ##STR2## where R 2 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group, and R 3 is hydrogen, hydroxyl, lower alkoxy, fluorine, or a protecting group.

专利号:EP-1615963-B1
优先权日:2003-04-16
标题:Method for the continuous synthesis of a liquid melamine resin
发明人：RAETZSCH MANFRED; BUCKA HARTMUT; SCHROEDER FRANK; PFEIFFER STEFFEN; TAPPEINER GUENTHER
权利人:AMI AGROLINZ MELAMINE INT GMBH
摘要:The invention relates to a method for synthesizing a liquid melamine resin, wherein: a) melamine, at least one aldehyde and at least one alcohol are fed to at least one first reactor operated continuously, in particular at least one agitated tank operated continuously and are reacted together, b) the reaction product that is obtained is fed to a solid-liquid phase separation device, c) a solids-rich phase that has been produced in the solid-liquid phase separation is fed back to at least one first reactor, and d) a phase devoid of solids that has been produced in the solid-liquid phase separation is subjected to additional processing steps. The invention thus provides an efficient continuous direct synthesis method for a liquid melamine resin.

专利号:US-6960654-B2
优先权日:2002-06-11
标题 :Method of forming glycosidic bonds from thioglycosides using an N,N-dialkylsulfinamide
发明人：CRICH DAVID C; SMITH MARK
权利人:UNIV ILLINOIS
摘要:A method of forming a glycosidic bond utilizing an activated thioglycoside is disclosed. The thioglycoside is activated by an N,N-dialkylsulfinamide and trifluoromethanesulfonic anhydride. The method allows the facile synthesis of disaccharides, oligosacchraides, and polysaccharides in solution or on a polymer support.