SYNTHESIS OF (4aS,7aS)-OCTAHYDRO-1H-PYRROLO[3,4-b]PYRIDINE
    1.
    发明申请
    SYNTHESIS OF (4aS,7aS)-OCTAHYDRO-1H-PYRROLO[3,4-b]PYRIDINE 有权
    (4aS,7aS)-OCTAHYDRO-1H-吡咯并[3,4-b]吡啶的合成

    公开(公告)号:US20110137036A1

    公开(公告)日:2011-06-09

    申请号:US13056458

    申请日:2010-03-04

    CPC分类号: C07D211/16 C07D471/04

    摘要: The present invention relates to the stereoselective synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine, as well as the conversion thereof, to give Moxifloxacin. Particularly, the present invention relates to a method for the synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) comprising: (a) the optical resolution by enzymatic hydrolysis of the intermediate dialkyl-1-alkylcarbonylpiperidine-2,3-dicarboxylate racemate of formula (II) to give, following isolation, the intermediate dialkyl-(2S,3R)-1-alkylcarbonyl-piperidine-2,3-dicarboxylate of formula (III) in which AIk is a straight or branched C1-C5 alkyl group; (b) the conversion of the intermediate (III) to (4aR,7aS)-1-alkylcarbonylhexahydrofuro[3,4-b]pyridine-5,7-dione of formula (IV) in which AIk has the meanings set forth above; (c) the conversion of the intermediate (IV) to (4aS,7as)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) with an optical purity above 99%.

    摘要翻译: 本发明涉及(4aS,7aS) - 八氢-1H-吡咯并[3,4-b]吡啶的立体选择性合成及其转化,得到莫西沙星。 特别地,本发明涉及合成式(I)的(4aS,7aS) - 八氢-1H-吡咯并[3,4-b]吡啶的方法,包括:(a)通过酶水解的光学拆分 中间体式(II)的二烷基-1-烷基羰基哌啶-2,3-二甲酸酯外消旋物,分离后得到中间体式(III)的二烷基 - (2S,3R)-1-烷基羰基 - 哌啶-2,3-二甲酸酯 其中Alk是直链或支链C 1 -C 5烷基; (b)将式(Ⅳ)中间体(III)转化为式(Ⅳ)的(4aR,7aS)-1-烷基羰基六氢呋喃并[3,4-b]吡啶-5,7-二酮,其中Alk具有上述含义; (c)以99%以上的光学纯度转化为式(I)的中间体(IV)至(4aS,7as) - 八氢-1H-吡咯并[3,4-b]吡啶。

    Synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine
    3.
    发明授权
    Synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine 有权
    (4aS,7aS) - 八氢-1H-吡咯并[3,4-b]吡啶的合成

    公开(公告)号:US08680276B2

    公开(公告)日:2014-03-25

    申请号:US13056458

    申请日:2010-03-04

    IPC分类号: C07D211/34

    CPC分类号: C07D211/16 C07D471/04

    摘要: The present invention relates to the stereoselective synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine, as well as the conversion thereof, to give Moxifloxacin. Particularly, the present invention relates to a method for the synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) comprising: (a) the optical resolution by enzymatic hydrolysis of the intermediate dialkyl-1-alkylcarbonylpiperidine-2,3-dicarboxylate racemate of formula (II) to give, following isolation, the intermediate dialkyl-(2S,3R)-1-alkylcarbonyl-piperidine-2,3-dicarboxylate of formula (III) in which AIk is a straight or branched C1-C5 alkyl group; (b) the conversion of the intermediate (III) to (4aR,7aS)-1-alkylcarbonylhexahydrofuro[3,4-b]pyridine-5,7-dione of formula (IV) in which AIk has the meanings set forth above; (c) the conversion of the intermediate (IV) to (4aS,7as)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) with an optical purity above 99%.

    摘要翻译: 本发明涉及(4aS,7aS) - 八氢-1H-吡咯并[3,4-b]吡啶的立体选择性合成及其转化,得到莫西沙星。 特别地,本发明涉及合成式(I)的(4aS,7aS) - 八氢-1H-吡咯并[3,4-b]吡啶的方法,包括:(a)通过酶水解的光学拆分 中间体式(II)的二烷基-1-烷基羰基哌啶-2,3-二甲酸酯外消旋物,分离后得到中间体式(III)的二烷基 - (2S,3R)-1-烷基羰基 - 哌啶-2,3-二甲酸酯 其中Alk是直链或支链C 1 -C 5烷基; (b)将式(Ⅳ)中间体(III)转化为式(Ⅳ)的(4aR,7aS)-1-烷基羰基六氢呋喃并[3,4-b]吡啶-5,7-二酮,其中Alk具有上述含义; (c)以99%以上的光学纯度转化为式(I)的中间体(IV)至(4aS,7as) - 八氢-1H-吡咯并[3,4-b]吡啶。

    Process for the preparation of ε-alkoxycarbonyllysines and their analogues
    5.
    发明授权
    Process for the preparation of ε-alkoxycarbonyllysines and their analogues 有权
    - 烷氧基羰基赖氨酸及其类似物的制备方法

    公开(公告)号:US08026372B2

    公开(公告)日:2011-09-27

    申请号:US12307687

    申请日:2006-08-04

    IPC分类号: C07D249/00

    摘要: A process for the preparation of ω-alkoxycarbonylamino-α-aminoacids and α,ω orthogonally diprotected diaminoacids from α,ω-diaminoacids using 1-alkoxycarbonylbenzotriazoles as protecting agents is disclosed. In an alternative embodiment, carbamoylating agents in the presence of benzotriazoles are used instead of 1-alkoxycarbonylbenzotriazoles. This reaction is preferably applied to the preparation of ε-alkoxycarbonyllysines from lysine. A process for the preparation of t-butoxycarbonylbenzotriazoles and novel complexes of ω-alkoxycarbonylamino-α-aminoacids with benzotriazoles are also disclosed.

    摘要翻译: 公开了使用1-烷氧基羰基苯并三唑作为保护剂从ω,ω-二氨基酸制备ω-烷氧基羰基氨基-α-氨基酸和α,ω正交二保护二氨基酸的方法。 在替代实施方案中,使用在苯并三唑存在下的氨基甲酰化剂代替1-烷氧基羰基苯并三唑。 该反应优选用于从赖氨酸制备的α-烷氧基羰基赖氨酸。 还公开了制备叔丁氧基羰基苯并三唑的方法和ω-烷氧基羰基氨基-α-氨基酸与苯并三唑的新型络合物。