This invention relates to a dicarboxylic acid that is particularly useful as an electrolyte component for electrolytic capacitors among polyvalent carboxylic acids, and aims to provide an electrolyte for electrolytic capacitors using the dicarboxylic acid and the electrolytic capacitor itself. The problem of the present invention is solved by a novel dicarboxylic acid containing a cyclic structure represented by the following formula (1). (In the formula, R1 to R5 and Z each represent specific groups, n represents the number of methylene groups in a specific range. The total number of carbons in this dicarboxylic acid compound is 10 to 50.) No figures are provided.
This invention relates to a dicarboxylic acid that is particularly useful as an electrolyte component for electrolytic capacitors among polyvalent carboxylic acids, and aims to provide an electrolyte for electrolytic capacitors using the dicarboxylic acid and the electrolytic capacitor itself. The problem of the present invention is solved by a novel dicarboxylic acid containing a cyclic structure represented by the following formula (1). (In the formula, R1 to R5 and Z each represent specific groups, n represents the number of methylene groups in a specific range. The total number of carbons in this dicarboxylic acid compound is 10 to 50.) No figures are provided.
Saturated bicyclic lactam acids, their derivatives, a process for preparing the compounds and a pharmaceutical composition comprising the compounds
申请人:WARNER-LAMBERT COMPANY
公开号:EP0151541A2
公开(公告)日:1985-08-14
Saturated bicyclic lactam acids and their derivatives of formula
wherein x is zero, one, two or three, and y and z are independently zero or one, are useful in the treatment of senility and for reversing amnesia. Pharmaceutical compositions including these compounds and a method of preparing the compounds are also disclosed.
饱和双环内酰胺酸及其衍生物(式中 x 为 0、1、2 或 3,y 和 z 独立地为 0 或 1)可用于治疗衰老症和逆转健忘症。 还公开了包括这些化合物的药物组合物以及制备这些化合物的方法。
Saturated tricyclic nitrogen-containing diones, a process for preparing the same and a pharmaceutical composition containing the compounds
申请人:WARNER-LAMBERT COMPANY
公开号:EP0153055A1
公开(公告)日:1985-08-28
Compounds of formula
wherein
x is zero, one, two or three and
y and z are independently zero or one are disclosed.
A method of preparing the compounds and pharmaceutical compositions including the compounds are also disclosed. The compounds are useful as agents in treating senility and amnesia.
公开了式中 x 为 0、1、2 或 3,y 和 z 独立地为 0 或 1 的化合物。 还公开了制备这些化合物的方法和包括这些化合物的药物组合物。 这些化合物可用作治疗老年痴呆症和健忘症的药物。
HUANG, HUAMIN;LI, YEZHI;WANG, ZHONGREN, CHEM. J. CHIN. UNIV., 8,(1987) N 6, 533-537