摘要:
This invention relates to new stereochemically pure and stable adducts of Z-1-(p-.beta.-dimethylaminoethoxyphenyl)-1-(p-hydroxyphenyl)-2-phenyl-but-1-ene and certain solvents which by virtue of their marked antioestrogenic activities may be used for the therapeutic treatment of benign breast diseases and hormone-dependent mammary tumors, in particularly by percutaneous application.
摘要:
A new process for the preparation of 2,6-dichlorodiphenylamine derivatives is described, which process provides the desired active compound in a high yield and with a very high degree of purity by a technically simple and realizable procedure.
摘要:
A new anhydrous crystalline form of prazosine hydrochloride characterized by the following bands in the infra-red spectrum in potassium bromide is described:3445 cm.sup.-1 (2.90 .mu.m),1010 cm.sup.-1 (9.90 .mu.m) (duplet), and768 cm.sup.-1 (13.03 .mu.m).This new form is distinguished by its surprisingly great stability in storage compared with known polymorphous forms of prazosine.
摘要:
A simplified process for the preparation of basically substituted phenylacetonitriles, in particular of verapamil, is described. This process is carried out with fewer stages and higher yields than the known processes according to the state of the art.
摘要:
New benzimidazoles correponding to the general formula I ##STR1## are described, in which the pyridazinone ring is attached in the 5- or 6- position of the benzimidazole ring and R.sup.1 denotes a hydrogen atom or a straight chained or branched C.sub.1 to C.sub.4 alkyl group, R.sup.2 denotes a hydrogen atom, a straight chained or branched C.sub.1 to C.sub.4 alkyl group, a C.sub.1 to C.sub.4 alkoxy group, a hydroxy group, a halogen atom, an amino group or a nitro group, A denotes a hydrogen atom, a group of the formula ##STR2## wherein R.sup.3 denotes a hydrogen atom, an optionally substituted C.sub.1 to C.sub.4 alkyl group or a C.sub.1 to C.sub.4 alkoxy group and B denotes a cyano group, a benzoyl group or a phenylsulphonyl group, or A denotes a group of the formula ##STR3## in which m has the value 2 or 3 and n represents an integer from 1 to 6, and the physiologically acceptable salts thereof as well as processes for their preparation and pharmaceutical preparations. containing these compounds These compounds are new, effective, positive inotropic substances which do not act by the mechanism of phosphodiesterase inhibition.
摘要:
A new process for the preparation of the nitroethane derivatives, ranitidine and nizatidine, is described which takes place via intermediate products and enables the said compounds to be prepared with a higher degree of purity. Another advantage is that in contrast to the known processes, it is not accompanied by the liberation of the highly toxic and malodorous compound, methylmercaptan.
摘要:
New dihydropryidazinone derivatives corresponding to the following formula ##STR1## and a process for their preparation and pharmaceutical preparations containing these compounds are described. These compounds are effective positively inotropic substances with an improved therapeutic profile.
摘要:
1,3-Dioxolanyl derivatives corresponding to the general formula I ##STR1## are described. These compounds have an antimicrobial activity and may therefore advantageously be used in chemotherapy.
摘要:
Alkanol derivatives corresponding to the general formula IR.sup.1 R.sup.2 N--(CH.sub.2).sub.m --Q--CH.sub.2 X--CH.sub.2 --Y--(CH.sub.2).sub.n --NHR.sup.3 (I)which have a highly selective action on histamine-H.sub.2 receptors are described. Due to this action, these compounds may advantageously be used for treatment of diseases caused by raised gastric secretion.
摘要:
Pharmaceutical preparations having an antiphlogistic action are described. The preparations contain, as active ingredient, a benzazole derivative corresponding to the general tautomeric formulae I ##STR1## wherein X represents a sulphur or oxygen atom and R.sup.1 represents a hydrogen atom and R.sup.2 a hydroxymethyl, formyl, lower carbalkoxy or lower acyl group or R.sup.1 and R.sup.2 together represent the group ##STR2## wherein R.sup.3 and R.sup.4 denote, independently of one another, a hydrogen atom or a C.sub.1 -C.sub.6 -alkyl group, or they contain a physiologically acceptable salt thereof. These pharmaceutical preparations are suitable in particular for the treatment of inflammatory conditions and for inhibiting the lipoxygenase and/or cyclooxygenase route of arachidonic acid metabolism.