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    • 8. 发明申请
    • METHOD OF SEPARATING OPTICAL ISOMERS OF A PROTECTED AMINOACID
    • 分离保护氨基酸的光学异构体的方法
    • WO2005001107A1
    • 2005-01-06
    • PCT/RU2004/000244
    • 2004-06-25
    • CLEA TECHNOLOGIES BVBIOTIR LTDYOUSHKO, Maxim IlichSVEDAS, Vytautas-Juozapas KajetonoSHELDON, Roger, ArthurVAN LANGEN, Lukas, Michael
    • YOUSHKO, Maxim IlichSVEDAS, Vytautas-Juozapas KajetonoSHELDON, Roger, ArthurVAN LANGEN, Lukas, Michael
    • C12P41/00
    • C07K14/38C12P13/04C12P41/005C12P41/007Y02P20/55
    • The invention relates to a method Method of enzy­matically separating optical isomers of a protected amino­ acid. According to the invention, a (non-sidechain-carboxyl)­ protected aminoacid is used having the general formula (I) HR 1 N-CR 2 - (CH) n -C (0) ZR 3 wherein R 1 is an amino-protective group or hydrogen; - R 2 is a side chain; n is a number chosen from 0, 1, and 2; ZR 3 is a carboxy-protective group where Z is chosen from 0 or NH; and R 1 and R 3 may be integrated, forming a heterocy­clic (non-sidechain-carboxyl)-protected ring, the ring backbone comprising 5 to 8 atoms; the (non-sidechain-carboxyl)-protected aminoacid having a mo­lecular weight of less than 1000 Dalton, said method comprising the steps of - contacting the (non-sidechain-carboxyl) -protected aminoacid (I) in the presence of water with an optionally partially pu­rified cell-free extract of a fungus containing an enzyme having at least one of an esterase and amidase activity yielding a mixture of (non-sidechain carboxyl) deprotected product and starting material; and - optionally separating the (non-sidechain carboxyl) depro­tected product and starting material.
    • 本发明涉及一种酶法分离被保护氨基酸的光学异构体的方法。 根据本发明,使用具有通式(I)HR 1 N-CR 2 - (CH)n C(O)Z R 3的(非侧链羧基)保护的氨基酸,其中R 1 >是氨基保护基或氢; -R 2是侧链; n是选自0,1和2的数字; ZR 3是羧基保护基,其中Z选自0或NH; 并且R 1和R 3可以整合,形成杂环(非侧链羧基)保护的环,所述环骨架包含5-8个原子; 分子量小于1000道尔顿的(非侧链羧基)保护的氨基酸,所述方法包括以下步骤:在水存在下使(非侧链羧基)保护的氨基酸(I)与 任选地部分纯化的无细胞提取物,其含有具有酯酶和酰胺酶活性中至少一种的酶,产生(非侧链羧基)脱保护产物和起始材料的混合物; 和 - 任选分离(非侧链羧基)脱保护产物和起始原料。