SYNTHESIS OF OPTICALLY ACTIVE<i>N</i>-[(<i>N</i>-ACETYL)-α-AMINOACYL]-β-AMINO ALCOHOLS BY HOMOGENEOUS AND HETEROGENEOUS ASYMMETRIC HYDROGENATIONS
作者:Iwao Ojima、Momoko Yatabe
DOI:10.1246/cl.1982.1335
日期:1982.9.5
Asymmetric hydrogenations of N-(N-acetyldehydrophenylalanyl)-β-amino alcohol benzyl ethers were carried out by using either rhodium complexes with chiral and achiral phosphines or 10% palladium on carbon. The effects of the chiral center in the β-amino alcohol moiety on simple as well as double asymmetric induction are described.
TRANSFORMANT PRODUCING SECONDARY METABOLITE MODIFIED WITH FUNCTIONAL GROUP AND NOVEL BIOSYNTHESIS GENES
申请人:Meiji Seika Kaisha, Ltd.
公开号:EP1223215A1
公开(公告)日:2002-07-17
An objective of the present invention is to provide a transformant altered so as to produce a secondary metabolite in which a benzene ring of the secondary product is modified at the para-position with a functional group containing a nitrogen atom. A transformant according to the present invention is a transformant of an organism producing a secondary metabolite having a benzene ring skeleton without substitution at the para-position with a functional group containing a nitrogen atom, said transformant being transformed by introducing a gene involved in a biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid so as to produce a secondary metabolite having a benzene ring skeleton substituted at the para-position with a functional group containing a nitrogen atom. Another objective of the present invention is to provide a novel gene involved in the biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid. A novel gene according to the present invention comprises genes encoding the amino acid sequences of SEQ ID NOs: 2, 4 and 6 or modified sequences thereof.
本发明的一个目的是提供一种转化体,这种转化体经过改变后可产生次级代谢产物,其中 次级产物的苯环在对位上被含有氮原子的官能团修饰。根据本发明,一种转化体是产生具有苯环骨架的次级代谢产物的生物体的转化体,该次级代谢产物的苯环骨架在对位上未被含有氮原子的官能团取代,所述转化体通过引入参与从络石酸到对氨基苯丙酮酸的生物合成途径的基因进行转化,从而产生具有苯环骨架的次级代谢产物,该次级代谢产物的苯环骨架在对位上被含有氮原子的官能团取代。本发明的另一个目的是提供一种参与从壳斗菜酸到对氨基苯基丙酮酸的生物合成途径的新型基因。根据本发明的新型基因包括编码 SEQ ID NOs: 2、4 和 6 的氨基酸序列或其修饰序列的基因。
Anti-Inflammatory and Anti-Allergy Extracts from Nettle
申请人:Alberte Randall S.
公开号:US20100009927A1
公开(公告)日:2010-01-14
The present invention relates in part to nettle extracts that are useful for treating or preventing seasonal allergies, allergic rhinitis, and other inflammatory conditions.
OJIMA, IWAO;YATABE, MOMOKO, CHEM. LETT., 1982, N 9, 1335-1338