摘要:
2,3,4-trinor-1,5-inter-m-phenylene-prostacycline derivatives of the formula (I), ##STR1## wherein R.sup.1 is hydrogen, a C.sub.1-4 alkyl group, an alkali metal cation or a primary, secondary, tertiary or quaternary ammonium cation,R.sup.2 and R.sup.3 each represent hydrogen or a C.sub.1-4 alkanoyl, benzoyl, substituted benzoyl, tetrahydropyranyl, ethoxyethyl or tri-(C.sub.1-4 alkyl)-silyl group,R.sup.4 is hydrogen or a C.sub.1-4 alkyl group, andR.sup.5 is a hexyl, heptyl, phenoxymethyl or m-trifluoromethylphenoxymethyl group, orR.sup.5 represents a group of the general formula ##STR2## and in this latter formula Z is an amino group or an optionally halo-substituted C.sub.1-4 alkanoylamino, benzoylamino or tosylamino group, andR.sup.6 is a C.sub.4-6 alkyl, phenyl or benzyl group,are prepared by reacting a bicyclic lactol of the formula (II), ##STR3## with a reactive phosphorane prepared from a triphenyl-m-carbobenzylphosphonium halide and a strong base, optionally esterifying the resulting prostaglandin derivative and, whenever it contains a free amino group, protecting this amino group by acylation, reacting then the prostaglandin derivative with an electrophilic reagent of the formula E-X, wherein X is halogen atom and E is halogen atom or an acetyl, trifluoroacetyl or N-succinimido group, and subjecting the resulting halogenated PGI.sub.1 derivative to hydrogen halide elimination. The compounds of the formula (I) possess valuable biological effects and can be applied in therapy primarily as blood platelet aggregation inhibiting agents.
摘要:
The invention relates to a new process for preparing unsaturated geminal dihalogen compounds. More particularly, the invention concerns a process for preparing compounds of the formula (I) ##STR1## wherein X is halogen,R.sup.1 is a straight or branched chained alkenyl group having 2 to 6 carbon atoms,by clearing the corresponding 1-substituted 2,2,2-trihaloethylesters.
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:
The invention relates to a process for the preparation of novel 4-oxo-PGI.sub.2 derivatives of formula I ##STR1## where (a) compounds of formula III ##STR2## are oxidized, then the obtained 5-substituted-4-oxo-PGI.sub.1 derivatives of general formula II ##STR3## are eliminated by the splitting off of the W-H-molecule, or (b) the compounds of formula IV ##STR4## are reacted in a solvent in the presence of a catalyst with compounds of general formula V ##STR5## then the obtained compounds of formula I are transformed if desired by saponification, hydrolysis, salt formation, insertion of a protection group to another compound which belongs to the compounds of formula I, too.The pharmaceutical products of the invention can be used for the treatment of circulatory diseases, they inhibit the aggregation of blood plaques, dilate the bronchi and inhibit the secretion of gastric acid.
摘要:
The present invention relates to a process for the preparation of compounds of the general Formula I ##STR1## and pharmaceutically acceptable salts thereof (wherein R stands for piperazinyl or 4-methyl-piperazinyl) which comprises reacting a compound of the general Formula II ##STR2## (wherein R.sup.1 and R.sup.2 stand for halogen; an aliphatic acyloxy group comprising 2-6 carbon atoms and optionally substituted by halogen; or an aromatic acyloxy group comprising 7-11 carbon atoms) with a piperazine of the general Formula III ##STR3## (wherein R.sup.3 represent hydrogen or methyl) or a salt thereof, hydrolysing the compound of the general Formula IV ##STR4## thus obtained (wherein R, R.sup.1 and R.sup.2 are as stated above) without or after hydrolysis and if desired converting the compound of the general Formula I thus obtained into a salt thereof or setting free the same from its salt.The compounds of the general Formula I are known antibacterial agents.The advantage of the process of the present invention is that it enables the preparation of the compounds of the general Formula I in a simple manner, with high yields and in a short reaction time.
摘要:
2,6-di-O-methyl-beta-cyclodextrin complexes of compounds of the formula (1a) ##STR1## wherein R.sup.2' stands for C.sub.1 to C.sub.12 alkyl or a group of the formula ##STR2## in which R.sup.11 is C.sub.1 to C.sub.4 alkyl;R.sup.12 is hydrogen or C.sub.1 to C.sub.4 alkyl;n is 0 or 1;p is 1 to 4;r is 1 to 4; andR.sup.3' and R.sup.4' are each C.sub.1 to C.sub.4 alkyl, or pharmaceutically salts thereof are disclosed, having analgesic activity.
摘要:
The invention relates to novel racemic or optically active berban derivatives of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent independently from the other a hydroxyl, straight or branched chain alkoxy group 1 to 6 carbon atoms or R.sup.1 and R.sup.2 together represent a C.sub.1-3 alkylenedioxy group;R.sup.3 and R.sup.4 represent independently from the other hydrogen, straight or branched chain alkyl group, having 1 to 6 carbon atoms and optionally substituted by hydroxyl group, or a C.sub.2-6 alkoxycarbonyl or cyano group; andR.sup.5 represents hydrogen, straight or branched chain alkyl group having 1 to 6 carbon atoms, C.sub.1-7 aliphatic or aromatic acyl group or C.sub.1-7 alkylsulphonyl or arylsulphonyl group, anda salt thereof, to pharmaceutical compositions containing them, to the use as well as to process for preparing the novel compounds. The compounds of the formula (I) are selective .alpha..sub.2 -adrenergic receptor-blocking substances and thus, they may be used for the treament of depressive illnesses.
摘要:
The invention relates to new 6-fluoro-7-chloro-1-methylamino-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid/boric acid anhydrides of the general Formula I ##STR1## (wherein R and R.sup.1 stand for halogen; an aliphatic acyloxy group comprising 2-6 carbon atoms and optionally substituted by halogen; or an aromatic acyloxy group comprising 7-11 carbon atoms).The new compounds of the general Formula I are valuable intermediates useful in the preparation of the antibacterial agent 6-fluoro-1-methylamino-7-(4-methyl-piperazino)-4-oxo-1,4-dihydro-quinoline-3- carboxylic acid.The new compounds of the general Formula I may be prepared by reacting a compound of the Formula II ##STR2## or a compound of the general Formula III ##STR3## (wherein R.sup.2 stands for alkyl comprising 1-4 carbon atoms) with hydrogen fluoro borate of the Formula IVHBF.sub.4 /IV/or a borone trihalide of the general Formula VBX.sub.3 /V/(wherein X stands for fluorine, chlorine or bromine) or a complex thereof formed with an ether or a borone derivative of the general Formula VI ##STR4## (wherein R.sup.3, R.sup.4 and R.sup.5 stand for alkyl comprising 1-5 carbon atoms and optionally substituted by halogen or aryl comprising 6-10 carbon atoms).
摘要:
The invention relates to a process for the preparation of compounds of the Formula I ##STR1## (wherein R and R.sup.1 stand for an aliphatic acyloxy group comprising 2-5 carbon atoms and optionally substituted by halogen or for an aromatic acyloxy group comprising 7-11 carbon atoms), which comprises reacting a compound of the general Formula II ##STR2## (wherein R.sup.2 stands for hydrogen or alkyl comprising 1-4 carbon atoms) with a boron derivative of the Formula III ##STR3## (wherein R.sup.3, R.sup.4 and R.sup.5 stand for an alkyl group comprising 1-4 carbon atoms and optionally substituted by halogen or for an aryl group comprising 6-10 carbon atoms).The new compounds of the general Formula I are useful pharmaceutical intermediates.