摘要:
The invention relates to new 7-oxo-PGI.sub.2 -ephedrine salt analogues of the Formula I ##STR1## wherein A stands for --(CH.sub.2).sub.2 --, cis or trans --CH.dbd.CH-- or --C.tbd.C--;R.sup.1 is lower alkyl or hydrogen;B represents a chemical bond, --CH.sub.2 -- or --CR.sup.2 R.sup.3 ;R.sup.2 stands for lower alkyl or hydrogen;R.sup.3 represents lower alkyl or hydrogen;X is a chemical bond, --O-- or --CH.sub.2 --;R.sup.4 stands for C.sub.1-6 alkyl, C.sub.4-7 cycloalkyl, C.sub.1-6 fluoroalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, phenyl, substituted phenyl or heteroaryl.The salts of the Formula I show the same pharmacological profile as the sodium salt of PGI.sub.2, they inhibit blood aggregation and the secretion of gastric acid, are useful in the prevention of anginal attacks. Accordingly the salts of the present invention are useful in the prevention of peripheral vascular diseases, in improving circulation of extremities, in relieving the seriousness of cardiac infarction and also in the treatment and prevention of gastrointestinal ulcer and acute or chronical liver injury.
摘要:
Compounds of the formula ##STR1## are disclosed wherein R.sup.1 stands for hydrogen, C.sub.1-4 straight or branched alkyl or pharmacologically acceptable cation,R.sup.2 stands for hydrogen, C.sub.1-4 alkanoyl, benzoyl, or benzoyl substituted by C.sub.1-4 alkyl or halogen, and R.sup.2 can further represent tetrahydropyranyl, trialkylsilyl or alkoxyalkyl,A stands for ethylene, cis or trans-vinylene or --C.dbd.C--,n may represent 2, 3 or 4. The compounds are highly effective in the inhibition of thrombocyte aggregation while at the same time exert only a very small hypotensive effect.
摘要:
A compound having vasodilative, bronchodilative, stomach-mucosa-protective and platelet-aggregation-inhibiting activity has the formulaA 4-thia- or 4-sulfinyl-PGI.sub.1 -compound of the formula I ##STR1## wherein Q stands for --S-- or --SO--,A stands for C.sub.1-6 straight or branched chain alkylene,B stands for ethylene, vinylene or ethinylene,R.sup.1 represents hydrogen or C.sub.1-4 alkyl,R.sup.2 represents C.sub.1-8 straight or branched chain alkyl or mono-substituted aryl-oxy-methyl,R.sup.3 stands for hydrogen or acetyl, andZ represents --COOH, --CN, --CH.sub.2 OH or --COOW, wherein W stands for an equivalent of a pharmacologically acceptable cation or C.sub.1-4 alkyl.
摘要:
The present invention relates to a process for the preparation of compounds of the general Formula I ##STR1## (wherein A is a straight or branched chain alkylene group having 1-5 carbon atoms;B is ethylene, Z or E vinylene, or ethynylene;R.sup.1 stands for hydrogen, an alkyl group having 1-5 carbon atoms or a pharmaceutically acceptable cation;R.sup.2 is hydrogen, an alkanoyl group having 1-5 carbon atoms or aroyl;R.sup.3 is hydrogen or methyl;R.sup.4 is a straight or branched chain alkyl group having 1-8 carbon atoms or an optionally monosubstituted aryloxymethyl group;R.sup.5 stands for hydrogen or an alkyl group having 1-5 carbon atoms)which comprises oxidizing a compound of the Formula III, IV or V ##STR2## or a mixture thereof R.sup.6 is hydrogen or an alkyl or alkanoyl group having 1-5 carbon atoms with a mild electrophilic oxidizing agent and if desired reacting the compound of the Formula I thus obtained wherein R.sup.5 is hydrogen with an alkanol containing 1-5 carbon atoms in the presence of boron trifluoride etherate in a manner known per se to yield the corresponding compound of the Formula I in which R.sup.5 is an alkyl group having 1-5 carbon atoms.
摘要翻译:本发明涉及制备通式Ⅰ(I)化合物的方法(其中A是具有1-5个碳原子的直链或支链亚烷基; B是乙烯,Z或E亚乙烯基, 或亚乙炔基; R 1表示氢,具有1-5个碳原子的烷基或药学上可接受的阳离子; R 2是氢,具有1-5个碳原子的烷酰基或芳酰基; R 3是氢或甲基; R 4是直链或 具有1-8个碳原子的支链烷基或任选的单取代的芳氧基甲基; R 5代表氢或具有1-5个碳原子的烷基),其包括将式III,IV或V的化合物(III (V)或其混合物R6是氢或具有1-5个碳原子的烷基或烷酰基,具有温和的亲电氧化剂,如果需要,则使式I的化合物反应 其中R5是含有1-5个碳原子的链烷醇 原子在三氟化硼乙醚合物存在下,以本身已知的方式得到相应的式I化合物,其中R 5为具有1-5个碳原子的烷基。
摘要:
A process for the preparation of bicyclic enon compounds in which a lactone diol is selectively oxidized to obtain a hydroxy-aldehyde with one hydroxyl group and, without isolation, the hydroxy-aldehyde is reacted with a phosphorus compound. The reaction product can be acylated or silylated.
摘要:
A process for the preparation of optically active or racemic lactone diol derivatives of the formula ##STR1## (for use as intermediates in the Corey prostaglandin synthesis). Optically active or racemic lactone diol derivatives are inclosed, in whichR.sup.3 and R.sup.4 are the same or different and stand for a hydrogen, or a lower alkanoyl optionally substituted with one, two or three halogen atoms, or form together a ##STR2## group, in which R.sup.5 and R.sup.6 are the same or different and stand for a hydrogen, alkyl or aryl, with a process for preparing them.According to the invention the above compound are prepared by reacting optically active or racemic lactone of the formula II with formaldehyde or with a formaldehyde polymerisate, in the presence of the mixture of a strong acid and water or of a lower alkane carboxylic acid optionally substituted with one, two or three halogen atoms, and then optionally subjecting the obtained compound of the general formula I, in which R.sup.3 and/or R.sup.4 stand for an alkanoyl optionally substituted with one, two or three halogen atoms to partial or total hydrolysis or alcoholysis in an acid or alkaline medium and/or reacting it with the oxo-compounds of the formula R.sup.5 --CHO or R.sup.6 --CO--R.sup.5 or with the acetals of the above compounds.The compounds according to the invention are useful intermediates in the Corey prostaglandine synthesis.
摘要:
A compound of the formula is disclosed. ##STR1## wherein R.sup.3 and R.sup.4 are the same or different and are each hydrogen, lower alkanoyl, lower alkanoyl substituted by 1, 2, or 3 halogen atoms, or R.sup.3 and R.sup.4 together form an ##STR2## group in which R.sup.5 and R.sup.6 are the same or different and are each hydrogen, alkyl or aryl as well as a process for the preparation thereof.