发明名称 |
PROCEDE DE PREPARATION ENZYMATIQUE DE L-AMINO ACIDES RENFERMANT DU SOUFRE |
摘要 |
L-Cysteine and/or L-cystine may be prepared by reacting a beta -substituted L-alanine represented by the general formula (I): <IMAGE> wherein X is a halogen atom, or an -OR or -SR group where R is a hydrogen atom, or an alkyl, acetyl, benzyl or sulfonic acid group, with a metal sulfide, a metal hydrosulfide, a metal polysulfide, ammonium sulfide, ammonium hydrosulfide or an ammonium polysulfide in the presence of tryptophan synthase. |
申请公布号 |
FR2580667(B1) |
申请公布日期 |
1989.11.03 |
申请号 |
FR19860005758 |
申请日期 |
1986.04.22 |
申请人 |
MITSUI TOATSU CHEMICALS INC |
发明人 |
MASAO SHIMADA, TAKESHI NAKAMURA, KENICHI ISHIWATA, NOBUYOSHI MAKIGUCHI ET MASAMI UEMURA;NAKAMURA TAKESHI;ISHIWATA KENICHI;MAKIGUCHI NOBUYOSHI;UEMURA MASAMI |
分类号 |
C12N1/20;C07C67/00;C07C313/00;C12N9/88;C12P13/12 |
主分类号 |
C12N1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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