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    • 34. 发明申请
    • METHOD FOR THE PREPARATION OF ENANTIOMERICALLY ENRICHED AMINES
    • 制备高效液相色谱的方法
    • WO02020820A1
    • 2002-03-14
    • PCT/NL2001/000642
    • 2001-08-30
    • C07C237/20C12P13/00C12P13/02C12P13/04C12P41/00C07C237/06
    • C12P13/002C12P13/008C12P13/02C12P13/04C12P41/006C12P41/007
    • Method for the preparation of an enantiomerically enriched acylated amine wherein a phenylacetic acid derivative is brought into contact with a mixture of enantiomers of an amine H2NCR1R2R3, in which R1, R2, R3 are not equal to each other and each independently stand for H, CN, a whether or not substituted (cyclo)alkyl, ary-, alkylaryl or arylalkyl group, whether or not cyclic heteroalkyl or heteroaryl group with one or more N, O or S atoms or in which R1 and R2 (and R3) together with the C-atom to which they have been bound form a (bi)cyclic group that optionally contains one or more N, O of S atoms, in the presence of a Pen-G acylase derived from Alcaligenes faecalis . And method for the preparation of enantiomerically enriched amine of formula H2NCR1R2R3, in which R1, R2, R3 are as defined above, wherein an acylated amine is brought into contact with a Pen-G acylase originating from Alcaligenes faecalis . Preferably enantiomerically enriched phenylglycine amide or an ester of p-hydroxyphenylglycine is applied as phenylacetic acid derivative.
    • 制备对映异构体富集的酰化胺的方法,其中苯乙酸衍生物与胺H 2 NCR 1 R 2 R 3的对映异构体的混合物接触,其中R 1,R 2,R 3不相同,并且各自独立代表H,CN 无论是否具有一个或多个N,O或S原子的环状杂烷基或杂芳基,或其中R 1和R 2(和R 3)与该取代的(环)烷基,芳基 - 烷基芳基或芳烷基 它们已经被结合的C原子形成任选地含有一个或多个S原子的N,O的(双)环基团,在来源于产碱杆菌的Pen-G酰基转移酶存在下。 以及制备式H2NCR1R2R3的对映异构体富集的胺的方法,其中R 1,R 2,R 3如上定义,其中酰化胺与源自产碱杆菌的Pen-G酰基转移酶接触 。 优选对映体富集的苯基甘氨酸酰胺或对羟基苯基甘氨酸的酯作为苯乙酸衍生物。
    • 36. 发明申请
    • PROCESS FOR PRODUCING L-ALLYSINE ACETALS
    • 生产L-亚氨酸乙酯的方法
    • WO98048040A1
    • 1998-10-29
    • PCT/JP1998/001830
    • 1998-04-22
    • C12P7/40C12P7/42C12P13/04C12P41/00
    • C12P7/40C12P13/04C12P41/006
    • A process for efficiently producing L-allysine acetals in short steps, which comprises reacting a D,L-allysine acetal of general formula: (1) (wherein R and R are the same or different from each other and each represents an alkyl group of 1 to 8 carbon atoms, or R and R together form a ring to represent an alkylene group having 2 to 8 carbon atoms) in the presence of an enzyme having the activity for sterically selectively and oxidatively deaminating D-amino acids to convert the D,L-allysine acetal into a mixture of a 2-oxo-6,6-dialkoxyhexanoic acid of general formula (2) (wherein R and R are each as defined above) with an L-allysine acetal of general formula (3) (wherein R and R are each as defined above) and then recovering the L-allysine acetal.
    • 一种用于在短时间内有效生产L-烯丙基乙缩醛的方法,其包括使通式为(1)(其中R 1和R 2彼此相同或不同)的D,L-烯丙基乙缩醛反应,以及 各自表示1至8个碳原子的烷基,或者R 1和R 2一起形成环,以表示具有2至8个碳原子的亚烷基)在具有空间选择性活性的酶存在下 和氧化脱氨基的D-氨基酸以将D,L-烯丙基乙缩醛转化成通式(2)的2-氧代-6,6-二烷氧基己酸(其中R 1和R 2各自为 如上所述)与通式(3)的L-烯丙基乙缩醛(其中R 1和R 2各自如上所定义),然后回收L-赖氨酸缩醛。