摘要:
This invention is directed generally to a process for producing Zeranol that eliminates high pressure and high temperature hydrogenations and provides high selectivity for Zeranol at improved yields.
摘要:
This invention is directed generally to a process for producing Zeranol that eliminates high pressure and high temperature hydrogenations and provides high selectivity for Zeranol at improved yields.
摘要:
A process is disclosed for the preparation of compounds of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen or lower alkyl;R.sup.3 is carboxy, lower alkoxycarbonyl, carbamoyl, carbamoyl substituted by one or two lower alkyl groups, or cyano;R.sup.4 is hydrogen, lower alkyl, phenyl, naphthyl, phenyl or naphthyl substituted by at least one fluoro, chloro, bromo, iodo, lower alkyl, lower alkoxy, hydroxy, carboxy, or phenyl, pyridyl or tetrazolyl; andR.sup.5 is hydrogen or lower alkyl; or a pharmaceutically acceptable salt, hydrate, stereoisomer, optically active isomer, geometric isomer, or tautomer thereof, which comprises the step of aminating a racemic or optically active compound of the formula (II) ##STR2## wherein X is halogen with a compound of the formula (III) ##STR3## or a pharmaceutically acceptable acid addition salt thereof. The compound of formula (II) possess antiallergic, especially antiasthma, activity.
摘要:
3 Substituted hexahydro-pyrimido[1, 2 a]azepines and quaternary derivatives, useful as antianginals are prepared. Specifically tested are 3 carboxylates and carbo hydrazides. 3 Cyano Carbamonyl and alkyl compounds are also disclosed.
摘要:
This invention relates to a naphthoquinone derivatives, to processes and to intermediates for preparing these derivatives, to pharmaceutical composition and to the use of these derivatives as antitumor agents in mammals.
摘要:
The invention relates to new azepino[1,2-a]pyrimidine derivatives--of the general formula ##STR1## wherein p=1, 2 and acid addition salts thereof which can be prepared by(a) reacting a compound of the formula ##STR2## with a compound of the general formula ##STR3## wherein p is as defined above and R.sup.7 is alkoxycarbonyl containing 2 to 5 carbon atoms or carboxamido or(b) reacting a compound of the general formula ##STR4## wherein R.sup.8 is alkyl containing 1 to 4 carbon atoms with a compound of the general formula ##STR5## wherein R.sup.7 is as defined above and if desired converting a compound of the general formula I to acid addition salt thereof or setting it free from the salt thereof.The new compounds show bronchodilatory activity.
摘要:
Intermediates useful in the preparation of Rutecarpine and Rutecarpine derivatives are disclosed as well as a process for the preparation of said intermediates having the following formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are the same or different and stand for hydrogen, halogen, nitro, carboxy, nitrile, alkoxy containing 1 to 4 carbon atoms, alkoxycarbonyl containing 1 to 4 carbon atoms in the alkoxy group, alkyl containing 1 to 4 carbon atoms, amino or hydroxy or R and R.sup.1 together stand for methylenedioxy, R.sup.2 stands for hydrogen, R.sup.3 represents hydrogen or alkyl containing 1 to 4 carbon atoms, R.sup.4 stands for phenyl, phenyl substituted by 1 to 3 same or different substituents selected from the group of halogen(s), alkyl, and alkoxy containing 1 to 4 carbon atoms, phenyloxy, hydroxy, nitro, amino, cyano, carboxy, alkoxycarbonyl having 1 to 4 carbon atoms, alkanoyl having 1 to 4 carbon atoms, methylenedioxy, trifluoromethyl, phenyl and dialkylamino having 1 to 4 carbon atoms in the alkyl part or naphthyl and the dotted line indicated an optional double bond. Also pharmaceutically acceptable acid addition and quaternary ammonium salts are disclosed.
摘要:
Compounds of the formula I ##STR1## or pharmaceutically acceptable salts, hydrates, stereoisomers, optically active isomers, geometrical isomers or tautomeric forms thereof are disclosedwhereinR is hydrogen or lower alkylR.sup.1 is hydrogen, lower alkyl, styryl, or a carboxylic acid; orR and R.sup.1 together form a group of the formula --(CH.dbd.CH).sub.2 -- and in this case the broken line represents a further C--C bond, while in all other cases there is a single bond between positions 6 and 7;R.sup.2 is hydrogen, lower alkyl or hydroxy;R.sup.3 is hydrogen, lower alkyl, aryl, lower alkanoyl, carboxyl or a carboxyl acid derivative or a group of the formula --(CH.sub.2)m--COOH or a derivative thereof formed in the carboxylic group;n=1-3;R.sup.4 is hydrogen, lower alkyl which can be substituted by hydroxy or carboxy; trifluoromethyl, substituted or unsubstituted aryl, phenyl-lower alkyl or substituted or an unsubstituted heterocyclic group;R.sup.5 is hydrogen, lower alkanoyl, substituted or unsubstituted benzoyl or heteroaryl; orR.sup.4 and R.sup.5 together with the adjacent nitrogen atom form a piperidino, pyrrolidino or morpholino ring; orR.sup.4 and R.sup.5 together with the adjacent nitrogen atom form a group of the formula ##STR2## wherein R.sup.6 is hydrogen and R.sup.7 is substituted or unsubstituted phenyl; andZ is oxygen. The new compounds are useful for treating asthma.
摘要:
A process for the preparation of nitrogen bridgehead condensed pyrimidine compounds of the general formula ##STR1## [wherein R represents hydrogen or lower alkyl;R.sup.1 represents hydrogen, lower alkyl, carboxy or a derivative thereof or styryl;R.sup.2 represents hydrogen or optionally substituted lower alkyl;R.sup.3 represents hydrogen, optionally substituted lower alkyl, aryl, aralkyl, halogen, carboxy or a derivative thereof, the group --(CH.sub.2).sub.m --COOH (in which m is the integer 1, 2 or 3) or a carboxy derivative thereof, formyl, lower alkanoyl or a condensed thereof;R.sup.4 represents hydrogen, optionally substituted alkyl, aryl optionally substituted by one or more substituents, optionally substituted aralkyl, a heterocyclic group optionally substituted by one or more substituents, the group (CH.sub.2).sub.m --Het (in which m is the integer 1, 2 or 3; Het is an optionally substituted heterocyclic group);R.sup.5 represents hydrogen, C.sub.1-6 alkyl, aryl optionally substituted by one or more substituents, formyl, lower alkanoyl, optionally substituted aroyl or heteroaryl; orR.sup.4 and R.sup.5 together with the nitrogen therebetween represent an optionally substituted mono- or bicyclic heterocyclic ring optionally containing further heteroatom]and pharmaceutically acceptable salts, hydrates, stereoisomers, optically active isomers, geometrical isomers and tautomers thereof.
摘要翻译:制备通式为“IMAGE”I的氮桥头浓缩嘧啶化合物的方法[其中R表示氢或低级烷基; R1代表氢,低级烷基,羧基或其衍生物或苯乙烯基; R 2表示氢或任选取代的低级烷基; R 3表示氢,任选取代的低级烷基,芳基,芳烷基,卤素,羧基或其衍生物,基团 - (CH 2)m -COOH(其中m是整数1,2或3)或其羧基衍生物, ,低级烷酰基或其缩合物; R 4表示氢,任选取代的烷基,任选被一个或多个取代基取代的芳基,任选取代的芳烷基,任选被一个或多个取代基取代的杂环基,基团(CH 2)m -Het(其中m是整数1,2 或3; Het是任选取代的杂环基); R 5表示氢,C 1-6烷基,任选被一个或多个取代基取代的芳基,甲酰基,低级烷酰基,任选取代的芳酰基或杂芳基; 或R4和R5以及它们之间的氮代表任选地被取代的单环或双环杂环,任选地含有另外的杂原子]及其药学上可接受的盐,水合物,立体异构体,光学活性异构体,几何异构体和互变异构体。
摘要:
Antiallergic and antiasthmatic compounds of the formula ##STR1## of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3-carboxylic acid and optically active antipodes and salts thereof are examples.