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    METHOD FOR THE PREPARATION OF 2,4-DIHYDROXYBUTYRATE
    2.
    发明公开
    METHOD FOR THE PREPARATION OF 2,4-DIHYDROXYBUTYRATE 审中-公开
    制备2,4-二羟基丁酸酯的方法

    公开(公告)号：EP2872640A1

    公开(公告)日：2015-05-20

    申请号：EP13734811.6

    申请日：2013-07-10

    申请人： Adisseo France S.A.S.

    发明人： WALTHER, Thomas ,  CORDIER, Hélène ,  DRESSAIRE, Clémentine ,  FRANCOIS, Jean Marie ,  HUET, Robert

    IPC分类号： C12P7/42 ,  C12P7/16 ,  C12N1/00

    摘要： A method for the preparation of 2,4-dihydroxybutyric acid from homoserine includes a first step of conversion of the primary amino group of homoserine to a carbonyl group to obtain 2-oxo-4-hydroxybutyrate, and a second step of reduction of the obtained 2-oxo-4-hydroxybutyrate (OHB) to 2,4-dihydroxybutyrate.

    摘要翻译： 本发明涉及由高丝氨酸制备2,4-二羟基丁酸的方法，该方法包括将高丝氨酸的伯氨基转化成羰基以获得2-氧代-4-羟基丁酸酯的第一步，和第二步 将获得的2-氧代-4-羟基丁酸酯（OHB）还原成2,4-二羟基丁酸酯

    PROCÉDÉ DE PRÉPARATION D'ANALOGUES DE LA MÉTHIONINE
    5.
    发明公开
    PROCÉDÉ DE PRÉPARATION D'ANALOGUES DE LA MÉTHIONINE 审中-公开

    公开(公告)号：EP3405452A1

    公开(公告)日：2018-11-28

    申请号：EP17706536.4

    申请日：2017-01-17

    申请人： Adisseo France S.A.S.

    发明人： HUET, Robert ,  HENRYON, Vivien ,  MONBRUN, Jérôme ,  AIRIAU, Etienne ,  AUBRY, Sylvain ,  REY, Patrick

    IPC分类号： C07C229/22 ,  C07C319/14 ,  C07C319/20 ,  C07C323/52 ,  C07D295/15 ,  C07C59/185

    CPC分类号： C07D295/15 ,  C07C229/22 ,  C07C319/14 ,  C07C323/52 ,  C07D295/027

    摘要： The invention relates to a method for preparing a compound (I) or one of the salts thereof, and the uses of said method, R
    1 OOC-C(=X)-CHR
    2 R
    3 (I), wherein X is selected among O; N-R', wherein R' is H or a C1-C6 alkyl; and N-OR'' wherein R'' is H, or a C1-C6 alkyl or an alkylaryl; R
    1 is H or a C1-C6 alkyl group; R
    2 is H, a C1-C6 alkyl, or an alkylaryl; and R
    3 is CH
    2 SR
    4 or CH
    2 SeR
    4 , where R
    4 is H or a C1-C6 alkyl from a compound (II), or one of the salts thereof, R
    1 OOC-C(=X)-CHR
    2 R
    5 and R
    5 is H or COOR
    6 , where R
    6 is H or a C1-C6 alkyl, said method being carried out in the presence of a compound (III) CH
    2 (Y)(Z). Wherein Y is H; OR
    7 , where R
    7 is H, a C1-C6 alkyl or an acyl with formula CO-R
    4 ; SR
    4 or SeR
    4 where R
    4 matches the preceding definition; or 1 NR
    8 R
    9 , where R
    8 and R
    9 , identical or different, each or together are a C1-C6 alkyl, or an alkylaryl; Z, identical or different to Y, is OR
    10 where R
    10 is H, a C1-C6 alkyl or CO-R
    4 ; a cyclic or acyclic N(COR
    4 )(COR
    4 ) group; or NR
    11 R
    12 , where R
    11 and R
    12 , identical or different, each or together are a C1-C6 alkyl or an alkylaryl; wherein Y and Z together are =O; said method involving an intermediate product (IV) R
    1 OOC-C(=X)-CHR
    2 -CH
    2 Z.