Method of producing optically active 4-amino-3-substituted phenylbutanoic acid
    16.
    发明授权
    Method of producing optically active 4-amino-3-substituted phenylbutanoic acid 有权
    光学活性4-氨基-3-取代苯基丁酸的制备方法

    公开(公告)号:US08293926B2

    公开(公告)日:2012-10-23

    申请号:US12086056

    申请日:2006-12-08

    IPC分类号: C07D207/273 C07C229/34

    摘要: The present invention provides a method of producing a compound (IIa) or a compound (IIb), provides a method of producing a compound (IIIa) or a compound (IIIb), provides a method of producing a compound (Va) or its salt or a compound (Vb) or its salt, provides a method of producing a compound (IIIa) or a compound (IIIb), further, provides a method of producing a compound (Va) or its salt or a compound (Vb) or its salt including these production methods.

    摘要翻译: 本发明提供化合物(IIa)或化合物(IIb)的制造方法,提供化合物(IIIa)或化合物(IIIb)的制造方法,提供化合物(Va)或其盐 或化合物(Vb)或其盐,提供化合物(IIIa)或化合物(IIIb)的制造方法,进一步提供化合物(Va)或其盐或化合物(Vb)或其化合物 盐包括这些生产方法。

    1-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved biodegradability
    20.
    发明授权
    1-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved biodegradability 有权
    具有改进的生物降解性的1-烷基-5-氧代吡咯烷-3-羧酸酯

    公开(公告)号:US08067651B2

    公开(公告)日:2011-11-29

    申请号:US12221302

    申请日:2008-08-01

    IPC分类号: C07D207/28 C07D207/00

    摘要: The invention provides compounds of the formula 1 in which A is a C2- to C4-alkylene group x is from 1 to 100 R1 is C1-C30-alkyl, C2-C30-alkenyl, C7-C30-alkylaryl R2 is an aliphatic, cycloaliphatic or aromatic radical which contains at least one structural unit of the formula 2  and y is from 0 to 100, with the proviso that y is from 1 to 100 when R2 is of the formula 2, and their use in amounts of from 0.01 to 2% by weight for preventing the formation of gas hydrates in aqueous phases which are in contact with a gaseous, liquid or solid organic phase.

    摘要翻译: 本发明提供式1化合物,其中A为C 2至C 4亚烷基x为1至100 R 1为C 1 -C 30 - 烷基,C 2 -C 30 - 烯基,C 7 -C 30烷基芳基R 2为脂族, 含有至少一个式2结构单元的脂环族或芳族基团,y为0至100,条件是当R 2为式2时y为1至100,并且其用量为0.01至 2重量%,用于防止在与气态,液体或固体有机相接触的水相中形成气体水合物。