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公开(公告)号:US20090076277A1
公开(公告)日:2009-03-19
申请号:US11927009
申请日:2007-10-29
申请人: Pietro ALLEGRINI , Marcello RASPARINI , Gabriele RAZZETTI , Simone MANTEGAZZA , Vittorio LUCCHINI , Alberto BOLOGNA
发明人: Pietro ALLEGRINI , Marcello RASPARINI , Gabriele RAZZETTI , Simone MANTEGAZZA , Vittorio LUCCHINI , Alberto BOLOGNA
IPC分类号: C07D401/02
CPC分类号: C07D401/12 , C07D471/04
摘要: A process for the preparation of a compound of formula (I), or a salt thereof, wherein Q is ═CR8— or ═N—; and R1-R8 are as herein defined; comprising the reaction of a compound of formula (II), or a salt thereof, wherein Q, R1-R7 are as herein defined; with a reducing agent selected from a trivalent phosphorous compound, an oxidizable solvent and a sulfonic acid chloride; and, if desired, the conversion of a compound of formula (I) to another compound of formula (I) or a salt thereof.
摘要翻译: 一种制备式(I)化合物或其盐的方法,其中Q是-CR 8 - 或-N-; 和R 1 -R 8如本文所定义; 包括式(II)化合物或其盐的反应,其中Q,R 1 -R 7如本文所定义; 与选自三价磷化合物,可氧化溶剂和磺酰氯的还原剂反应; 如果需要,式(I)化合物转化为另一种式(I)化合物或其盐。
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公开(公告)号:US20070270483A1
公开(公告)日:2007-11-22
申请号:US11749977
申请日:2007-05-17
IPC分类号: A61K31/381 , C07D333/22
CPC分类号: C07C213/08 , Y02P20/55
摘要: A process for preparation of a compound of formula (I), or a salt thereof, both as individual isomer and as mixtures thereof, wherein each of A and B is independently aryl or heteroaryl optionally substituted with 1 to 4 substituents; and R and R1, which can be the same or different, are hydrogen, C1-C6 alkyl or an amino-protecting group; comprising the reaction of a compound (II) wherein A and B are as defined above, with a compound (III) wherein each of R and R1 is independently C1-C6 alkyl or an amino-protecting group; and X is a leaving group; in the presence of a basic agent; and, if desired the conversion of a compound (I) to another compound (I); and/or, if desired, the separation of an isomeric mixture of a compound (I) into the individual isomers; and/or, if desired, the conversion of a compound (I) to a salt thereof.
摘要翻译: 制备式(I)化合物或其盐作为单独异构体及其混合物的方法,其中A和B各自独立地为任选被1至4个取代基取代的芳基或杂芳基; R 1和R 2可以相同或不同,为氢,C 1 -C 6烷基或氨基保护基 ; 包括其中A和B如上定义的化合物(II)与化合物(III)的反应,其中R和R 1各自独立地为C 1〜 C 6烷基或氨基保护基; X为离去群; 在一个基本代理人的面前; 并且如果需要,化合物(I)转化为另一化合物(I); 和/或如果需要,将化合物(I)的异构体混合物分离成单独的异构体; 和/或如果需要,化合物(I)转化为其盐。
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公开(公告)号:US20080146829A1
公开(公告)日:2008-06-19
申请号:US11958778
申请日:2007-12-18
IPC分类号: C07C255/23
CPC分类号: C07C253/30 , C07C255/41
摘要: A process for the preparation of entacapone, in particular as the polymorphic form A, comprising the preparation of a compound of formula (V), as herein defined, by condensation of N,N-diethyl-cyano-acetamide with a compound of formula (IV), as herein defined, in the presence of a strong basic agent; the dealkylation of said compound of formula (V) to obtain entacapone and the crystallization thereof to the polymorphic form A.
摘要翻译: 恩替卡朋的制备方法,特别是多晶型A,其包括通过N,N-二乙基 - 氰基 - 乙酰胺与式(III)化合物的缩合制备如本文定义的式(Ⅴ)化合物 IV),如本文所定义的,在强碱性剂的存在下; 所述式(V)化合物的脱烷基化以获得恩他卡朋,并将其结晶化为多晶型A.
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公开(公告)号:US20110269962A1
公开(公告)日:2011-11-03
申请号:US13092171
申请日:2011-04-22
IPC分类号: C07D215/14 , C07F7/18
CPC分类号: C07D215/14
摘要: Process for the preparation of β-ketoester synthetic intermediates useful in the preparation of statins, in particular Pitavastatin.
摘要翻译: 用于制备可用于制备他汀类药物的合成中间体的方法,特别是匹他伐他汀。
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