The present invention relates to a method of producing an optically active cyanohydrin derivative, which comprises reacting an aldehyde or an asymmetrical ketone with a cyanating agent in the presence of a Lewis base and a titanium compound produced from a partial hydrolysate of titanium tetraalkoxide and an optically active ligand represented by formula (II) or a titanium oxoalkoxide compound represented by formula (I) [Ti
x
O
y
](OR
1
)
4x-2y
, and an optically active ligand represented by formula (II), wherein R
1
is an optionally substituted alkyl group or an optionally substituted aryl group; x is an integer of not less than 2; y is an integer of not less than 1; and y/x satisfies 0.1
本发明涉及一种制备光学活性氰醇衍生物的方法,包括在Lewis碱和由钛四烷氧化物的部分水解物和式(I)[TixOy](OR1)4x-2y,以及由式(II)表示的光学活性配体组成的钛氧烷衍生物的存在下,将醛或不对称酮与氰化试剂反应。其中,R1是可选的取代基的烷基或芳基;x为不小于2的整数;y为不小于1的整数;且y/x满足0.1
[EN] EXCITATORY AMINO ACID RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES DES RECEPTEURS D'ACIDES AMINES EXCITATEURS
申请人:ELI LILLY AND COMPANY
公开号:WO1996007405A1
公开(公告)日:1996-03-14
(EN) The present invention provides compounds of formula (I) in which R is as defined in the specification, or a pharmaceutically acceptable metabolically labile ester or amide thereof, or a pharmaceutically acceptable salt thereof, which are useful as antagonists of one or more of the actions of L-glutamate at metabotropic excitatory amino acid receptors.(FR) Cette invention concerne des composés de formule (I), dans laquelle R est tel que défini dans le descriptif, ou un ester ou amide pharmaceutiquement acceptable de ces composés qui est métaboliquement labile, ou encore un sel pharmaceutiquement acceptable de ces composés, qu'on utilise comme antagonistes d'une ou de plusieurs actions du L-glutamate au niveau des récepteurs d'acides aminés excitateurs métabotropiques.
本发明提供了公式(I)的化合物,其中R如规范中定义,或其药物可接受的代谢易裂解酯或酰胺,或其药物可接受的盐,这些化合物是L-谷氨酸在代谢型兴奋性氨基酸受体上的一个或多个作用的拮抗剂。
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