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公开(公告)号:US5780669A
公开(公告)日:1998-07-14
申请号:US592402
申请日:1996-02-01
申请人: Toshifumi Akiba , Takanobu Ikeya , Hirofumi Kawanishi , Yusuke Yukimoto , Shinji Kamihara , Tsutomu Ebata
发明人: Toshifumi Akiba , Takanobu Ikeya , Hirofumi Kawanishi , Yusuke Yukimoto , Shinji Kamihara , Tsutomu Ebata
IPC分类号: C07C51/377 , C07C67/317 , C07C69/74
CPC分类号: C07C51/377 , C07C67/317
摘要: A compound represented by the following formula (1) or (3): ##STR1## is subjected to a catalytic hydrogenolysis reaction in the presence of a base and thus a compound represented by the following formula (2): ##STR2## wherein R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and X represents a chlorine atom or a bromine atom; is easily produced. This compound is usable as an intermediate for the preparation of drugs.
摘要翻译: PCT No.PCT / JP94 / 01280 Sec。 371日期:1996年2月1日 102(e)日期1996年2月1日PCT 1994年8月3日PCT PCT。 出版物WO95 / 04712 日期:1995年2月16日由下式(1)或(3)表示的化合物:在碱的存在下进行催化氢解反应,因此代表的化合物 (2)其中R表示氢原子或碳原子数1〜4的烷基,X表示氯原子或溴原子, 很容易生产。 该化合物可用作制备药物的中间体。
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公开(公告)号:US06596898B2
公开(公告)日:2003-07-22
申请号:US09029054
申请日:1998-02-27
申请人: Tsutomu Ebata , Toshifumi Akiba , Takanobu Ikeya , Ryuhei Wakita , Mikio Sasaki
发明人: Tsutomu Ebata , Toshifumi Akiba , Takanobu Ikeya , Ryuhei Wakita , Mikio Sasaki
IPC分类号: C07C6974
CPC分类号: C07C327/24 , C07C67/347 , C07C231/12 , C07C231/18 , C07C2601/02 , C07C69/74
摘要: A process for preparing compounds represented by the following general formula (I) wherein X represents chlorine atom, bromine atom, or iodine atom, and R includes alkoxy group and amino group which comprises the step of allowing a compound represented by the formula: CH2═CXF react with a compound represented by the formula: N2CHCOR in the presence of a catalyst containing a metal atom such as a transition metal of group 8 together with chiral carboxylic-type or amide-type ligands to preferentially obtain a stereoisomer of the compound of the general formula (I) wherein the stereochemical configuration at the 1-position is S-configuration
摘要翻译: 一种制备由以下通式(I)表示的化合物的方法,其中X表示氯原子,溴原子或碘原子,R包括烷氧基和氨基,该方法包括使下式表示的化合物:CH2 = 在含有金属原子如8族的过渡金属的催化剂以及手性羧酸型或酰胺型配体的存在下,CXF与式N2CHCOR表示的化合物反应,以优先获得化合物的立体异构体 通式(I)其中1位的立体化学构型是S-构型
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