专利号:US-8822702-B2 优先权日:2002-12-20 标 题 :Synthesis of amines and intermediates for the synthesis thereof 发明人:BERENS ULRICH; DOSENBACH OLIVER; SPRENGER DANIEL 权利人:BERENS ULRICH; DOSENBACH OLIVER; SPRENGER DANIEL; BASF SE 摘要:The invention relates in a first embodiment to a method for the manufacture of esters of the formula I, n nor especially of amides of the formula II,n n nwherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
专利号:US-7786156-B2 优先权日:2004-01-28 标 题 :Synthesis methods and intermediates for the manufacture of Rizatriptan 发明人:MARTIN PIERRE; BERENS ULRICH; BOUDIER ANDREAS; DOSENBACH OLIVER 权利人:RATIOPHARM GMBH 摘要:The invention relates to a process for the manufacture of an 1,2,4-triazol-1-yl compound of the formula [A], n nor a salt thereof, wherein each of R3 and R4 is hydrogen or lower alkyl, said process comprising reacting a hydrazine compound of the formula [B]n n nwherein R is hydrogen or acyl, R2 is hydrogen or a protecting group, are hydrogen or lower alkyl, and R6 is hydrogen or COOR7, or a salt thereof, with a 1,2,4-triazolyl forming reagent.n n In addition, novel intermediates for the synthesis of the anti-migraine agent Rizatriptan and methods for their synthesis are presented.
专利号:US-2010087660-A1 优先权日:2002-12-20 标题 :Synthesis of amines and intermediates for the synthesis thereof
专利号:US-8710093-B2 优先权日:2002-12-20 标 题 :Synthesis of amines and intermediates for the synthesis thereof
专利号:US-2006058367-A1 优先权日:2002-12-20 标题:Synthesis of amines and intermediates for the synthesis thereof
专利号:US-2012220782-A1 优先权日:2002-12-20 标 题 :Synthesis of amines and intermediates for the synthesis thereof